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<blockquote data-quote="lovinyou" data-source="post: 72159" data-attributes="member: 74763"><p><span style="font-size: 18px"><strong><span style="color: red"><span style="font-family: 'Arial'">Lượng giác - đề 1 :</span></span></strong> </span></p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 1: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = sinx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = x + 1</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = x²</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = (x - 1) / (x + 2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 2: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = sinx - x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = cosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = xsinx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = (x² + 1) / x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 3: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = xcosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = xtgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = tgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = 1/x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 4: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = sinx / x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = x + tgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = x² + 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 5: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = x / sinx </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = xsinx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = x + sinx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = 1+ x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. y = sin2x</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 6: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = xcos2x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = x + cos2x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = x² + 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = cos2x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. y = Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 7: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = 2x +3sinx </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = sinx + cosx + x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = sin²x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = xsin²x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. y = Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 8: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ?</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. y = xcos²x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. y = cos²x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. y = x² - cos²x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. y = x²</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. y = Không có</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 9: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sinx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π / 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 10: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 2π / 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p></p><p></p><p></p><p><span style="font-size: 18px"><strong><span style="color: red"><span style="font-family: 'Arial'">Lượng giác - Đề 2 :</span></span></strong> </span></p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 1: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = tgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = kπ, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 2: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = kπ, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 3: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin2x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = k2π, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π / 4</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 4: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin(ax + b)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = a / 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π / a</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = a.2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 5: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cos3x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 2π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π / 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π / 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 6: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin(x/2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 4π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 7: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cos(ax + b)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = a / 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = a.2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 2π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 8: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cos(x/3)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 6π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 3π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = k2π, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = π / 3</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 9: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sinx + cosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = k2π, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 4π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 10: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin(x/2) + cosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 6π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 4π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 0 </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p></p><p></p><p></p><p><span style="font-size: 18px"><strong><span style="color: red"><span style="font-family: 'Arial'">Lượng giác - Đề 2 :</span></span></strong> </span></p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 1: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = tgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = kπ, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 2: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = kπ, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 3: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin2x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = k2π, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π / 4</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 4: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin(ax + b)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = a / 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π / a</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = a.2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 5: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cos3x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 2π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π / 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = π / 3</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 6: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin(x/2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 4π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 7: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cos(ax + b)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = a / 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π / 2</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = a.2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 2π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 8: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = cos(x/3)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 6π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 3π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = k2π, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = π / 3</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 9: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sinx + cosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = k2π, k€ Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 4π </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 10: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm chu kỳ của hàm số y = sin(x/2) + cosx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = 6π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = 2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = 4π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = 0 </span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p></p><p></p><p></p><p><span style="font-size: 18px"><strong><span style="color: red"><span style="font-family: 'Arial'">Lượng giác - đề 4 :</span></span></strong> </span></p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 1: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x ≠ (π /2) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x ≠ ±(π /2) + k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x € R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x ≠ (π /4) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. x ≠ kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 2: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = tgx + cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x ≠ k(π/2), k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x ≠ (π /2) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x ≠ kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x € R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 3: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 4: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 5: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 6: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền giá trị của hàm số y = sin6x + cos6x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = [ 0 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = [ 1/4 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = [ 0 ; 2 ]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = [ 1/2 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác </span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 7: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = arctgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. D = ( 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. D = [ 0 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. D = ( -∞ ; +∞ )</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. D = [- π/2 ; π/2]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 8: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền giá trị của hàm số y = arctgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = ( -∞ ; 0 )</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = [ 0 ; 1 ]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = (- π/2 ; π/2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 9: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = arccotgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. D = [- π/2 ; π/2]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. D = ( 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. D = [ 0 ; 1 ]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. D = ( 0 ; π )</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. D = ( -∞ ; +∞ )</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 10: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Miền giá trị của hàm số y = arccotgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = ( 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = [ 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = (- π/2 ; π/2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = ( 0 ; π)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p></p><p></p><p></p><p><span style="font-size: 18px"><strong><span style="color: red"><span style="font-family: 'Arial'">Lượng giác - đề 4 :</span></span></strong> </span></p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 1: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x ≠ (π /2) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x ≠ ±(π /2) + k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x € R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x ≠ (π /4) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. x ≠ kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 2: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = tgx + cotgx</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x ≠ k(π/2), k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x ≠ (π /2) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x ≠ kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x € R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 3: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 4: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 5: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 6: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền giá trị của hàm số y = sin6x + cos6x</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = [ 0 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = [ 1/4 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = [ 0 ; 2 ]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = [ 1/2 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác </span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 7: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = arctgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. D = ( 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. D = [ 0 ; 1]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. D = ( -∞ ; +∞ )</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. D = [- π/2 ; π/2]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Các đáp số trên đều sai</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 8: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền giá trị của hàm số y = arctgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = ( -∞ ; 0 )</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = [ 0 ; 1 ]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = (- π/2 ; π/2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 9: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Tìm miền xác định của hàm số y = arccotgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. D = [- π/2 ; π/2]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. D = ( 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. D = [ 0 ; 1 ]</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. D = ( 0 ; π )</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. D = ( -∞ ; +∞ )</span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 10: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Miền giá trị của hàm số y = arccotgx là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. T = R</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. T = ( 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. T = [ 0 ; 1)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. T = (- π/2 ; π/2)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. T = ( 0 ; π)</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p></p><p></p><p></p><p><span style="font-size: 18px"><strong><span style="color: red"><span style="font-family: 'Arial'">Lượng giác - Đề 6 :</span></span></strong> </span></p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 1: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 2: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 3: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 4: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 5: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 6: </span></span></u></strong></p><p></p><p></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 7: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Giải phương trình sinx = 0 là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x = kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x = (π/2) + kπ, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x = (π/2) + k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. Các đáp số trên đều đúng</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Các đáp số trên đều sai</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 8: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Giải phương trình sinx = 1 là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x = -(π/2) + k2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x = (π/2) + kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x = kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x = (π/2) + k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 9: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Giải phương trình sinx = -1 là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x = -(π/2) + kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x = (π/2) + kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x = -(π/2) + k2π</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x = (π/4) + k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p> </p><p><strong><u><span style="color: green"><span style="font-family: 'Arial'">Câu hỏi 10: </span></span></u></strong></p><p><span style="color: black"><span style="font-family: 'Arial'">Giải phương trình sinx = 1/2 là :</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">A. x = (π/2) + kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">B. x = (-1)k . (π/6) + kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">C. x = -(π/2) + kπ</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">D. x = (π/3) + k2π, k € Z</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'">E. Một đáp số khác</span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p><span style="color: black"><span style="font-family: 'Arial'"></span></span></p><p></p><p> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">A.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">B.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">C.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">D.</span></span></strong> </p><p><strong><span style="color: green"><span style="font-family: 'Arial'">E.</span></span></strong> </p><p></p><p></p><p></p><p></p><p> </p><p> </p></blockquote><p></p>
[QUOTE="lovinyou, post: 72159, member: 74763"] [SIZE=5][B][COLOR=red][FONT=Arial]Lượng giác - đề 1 :[/FONT][/COLOR][/B][FONT=Times New Roman] [/FONT][/SIZE] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 1: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = sinx B. y = x + 1 C. y = x² D. y = (x - 1) / (x + 2) E. Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 2: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = sinx - x B. y = cosx C. y = xsinx D. y = (x² + 1) / x E. Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 3: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = xcosx B. y = xtgx C. y = tgx D. y = 1/x E. Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 4: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = sinx / x B. y = x + tgx C. y = x² + 3 D. y = cotgx E. Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 5: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = x / sinx B. y = xsinx C. y = x + sinx D. y = 1+ x E. y = sin2x[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 6: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = xcos2x B. y = x + cos2x C. y = x² + 3 D. y = cos2x E. y = Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 7: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = 2x +3sinx B. y = sinx + cosx + x C. y = sin²x D. y = xsin²x E. y = Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 8: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Trong các hàm số sau đây, hàm số nào là hàm số tuần hoàn ? A. y = xcos²x B. y = cos²x C. y = x² - cos²x D. y = x² E. y = Không có [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 9: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sinx A. T = k2π, k € Z B. T = π / 2 C. T = π D. T = π / 3 E. T = 2π [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 10: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cosx A. T = 2π / 3 B. T = k2π, k € Z C. T = π D. T = π / 2 E. T = 2π [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [SIZE=5][B][COLOR=red][FONT=Arial]Lượng giác - Đề 2 :[/FONT][/COLOR][/B][FONT=Times New Roman] [/FONT][/SIZE] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 1: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = tgx A. T = 2π B. T = kπ, k€ Z C. T = π / 2 D. T = π E. T = Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 2: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cotgx A. T = π / 2 B. T = kπ, k€ Z C. T = 2π D. T = π E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 3: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin2x A. T = π B. T = k2π, k€ Z C. T = π / 2 D. T = π / 4 E. T = 2π [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 4: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin(ax + b) A. T = a / 2π B. T = 2π / a C. T = 2π D. T = π E. T = a.2π [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 5: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cos3x A. T = 2π B. T = π C. T = 2π / 3 D. T = π / 3 E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 6: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin(x/2) A. T = π B. T = 2π C. T = π / 2 D. T = 4π E. T = Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 7: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cos(ax + b) A. T = a / 2π B. T = 2π / 2 C. T = a.2π D. T = 2π E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 8: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cos(x/3) A. T = 6π B. T = 3π C. T = 2π D. T = k2π, k€ Z E. T = π / 3[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 9: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sinx + cosx A. T = k2π, k€ Z B. T = 2π C. T = π D. T = 4π E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 10: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin(x/2) + cosx A. T = 6π B. T = 2π C. T = 4π D. T = 0 E. T = Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [SIZE=5][B][COLOR=red][FONT=Arial]Lượng giác - Đề 2 :[/FONT][/COLOR][/B][FONT=Times New Roman] [/FONT][/SIZE] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 1: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = tgx A. T = 2π B. T = kπ, k€ Z C. T = π / 2 D. T = π E. T = Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 2: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cotgx A. T = π / 2 B. T = kπ, k€ Z C. T = 2π D. T = π E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 3: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin2x A. T = π B. T = k2π, k€ Z C. T = π / 2 D. T = π / 4 E. T = 2π [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 4: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin(ax + b) A. T = a / 2π B. T = 2π / a C. T = 2π D. T = π E. T = a.2π [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 5: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cos3x A. T = 2π B. T = π C. T = 2π / 3 D. T = π / 3 E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 6: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin(x/2) A. T = π B. T = 2π C. T = π / 2 D. T = 4π E. T = Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 7: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cos(ax + b) A. T = a / 2π B. T = 2π / 2 C. T = a.2π D. T = 2π E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 8: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = cos(x/3) A. T = 6π B. T = 3π C. T = 2π D. T = k2π, k€ Z E. T = π / 3[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 9: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sinx + cosx A. T = k2π, k€ Z B. T = 2π C. T = π D. T = 4π E. T = Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 10: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm chu kỳ của hàm số y = sin(x/2) + cosx A. T = 6π B. T = 2π C. T = 4π D. T = 0 E. T = Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [SIZE=5][B][COLOR=red][FONT=Arial]Lượng giác - đề 4 :[/FONT][/COLOR][/B][FONT=Times New Roman] [/FONT][/SIZE] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 1: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = cotgx A. x ≠ (π /2) + kπ, k € Z B. x ≠ ±(π /2) + k2π, k € Z C. x € R D. x ≠ (π /4) + kπ, k € Z E. x ≠ kπ, k € Z [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 2: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = tgx + cotgx A. x ≠ k(π/2), k € Z B. x ≠ (π /2) + kπ, k € Z C. x ≠ kπ, k € Z D. x € R E. Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 3: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 4: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 5: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 6: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền giá trị của hàm số y = sin6x + cos6x A. T = [ 0 ; 1] B. T = [ 1/4 ; 1] C. T = [ 0 ; 2 ] D. T = [ 1/2 ; 1] E. Một đáp số khác [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 7: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = arctgx là : A. D = ( 0 ; 1) B. D = [ 0 ; 1] C. D = ( -∞ ; +∞ ) D. D = [- π/2 ; π/2] E. Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 8: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền giá trị của hàm số y = arctgx là : A. T = R B. T = ( -∞ ; 0 ) C. T = [ 0 ; 1 ] D. T = (- π/2 ; π/2) E. Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 9: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = arccotgx là : A. D = [- π/2 ; π/2] B. D = ( 0 ; 1) C. D = [ 0 ; 1 ] D. D = ( 0 ; π ) E. D = ( -∞ ; +∞ )[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 10: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Miền giá trị của hàm số y = arccotgx là : A. T = R B. T = ( 0 ; 1) C. T = [ 0 ; 1) D. T = (- π/2 ; π/2) E. T = ( 0 ; π) [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [SIZE=5][B][COLOR=red][FONT=Arial]Lượng giác - đề 4 :[/FONT][/COLOR][/B][FONT=Times New Roman] [/FONT][/SIZE] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 1: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = cotgx A. x ≠ (π /2) + kπ, k € Z B. x ≠ ±(π /2) + k2π, k € Z C. x € R D. x ≠ (π /4) + kπ, k € Z E. x ≠ kπ, k € Z [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 2: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = tgx + cotgx A. x ≠ k(π/2), k € Z B. x ≠ (π /2) + kπ, k € Z C. x ≠ kπ, k € Z D. x € R E. Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 3: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 4: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 5: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 6: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền giá trị của hàm số y = sin6x + cos6x A. T = [ 0 ; 1] B. T = [ 1/4 ; 1] C. T = [ 0 ; 2 ] D. T = [ 1/2 ; 1] E. Một đáp số khác [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 7: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = arctgx là : A. D = ( 0 ; 1) B. D = [ 0 ; 1] C. D = ( -∞ ; +∞ ) D. D = [- π/2 ; π/2] E. Các đáp số trên đều sai[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 8: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền giá trị của hàm số y = arctgx là : A. T = R B. T = ( -∞ ; 0 ) C. T = [ 0 ; 1 ] D. T = (- π/2 ; π/2) E. Một đáp số khác[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 9: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Tìm miền xác định của hàm số y = arccotgx là : A. D = [- π/2 ; π/2] B. D = ( 0 ; 1) C. D = [ 0 ; 1 ] D. D = ( 0 ; π ) E. D = ( -∞ ; +∞ )[/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 10: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Miền giá trị của hàm số y = arccotgx là : A. T = R B. T = ( 0 ; 1) C. T = [ 0 ; 1) D. T = (- π/2 ; π/2) E. T = ( 0 ; π) [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [SIZE=5][B][COLOR=red][FONT=Arial]Lượng giác - Đề 6 :[/FONT][/COLOR][/B][FONT=Times New Roman] [/FONT][/SIZE] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 1: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 2: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 3: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 4: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 5: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 6: [/FONT][/COLOR][/U][/B] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 7: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Giải phương trình sinx = 0 là : A. x = kπ, k € Z B. x = (π/2) + kπ, k € Z C. x = (π/2) + k2π, k € Z D. Các đáp số trên đều đúng E. Các đáp số trên đều sai [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 8: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Giải phương trình sinx = 1 là : A. x = -(π/2) + k2π B. x = (π/2) + kπ C. x = kπ D. x = (π/2) + k2π, k € Z E. Một đáp số khác [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 9: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Giải phương trình sinx = -1 là : A. x = -(π/2) + kπ B. x = (π/2) + kπ C. x = -(π/2) + k2π D. x = (π/4) + k2π, k € Z E. Một đáp số khác [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][U][COLOR=green][FONT=Arial]Câu hỏi 10: [/FONT][/COLOR][/U][/B] [COLOR=black][FONT=Arial]Giải phương trình sinx = 1/2 là : A. x = (π/2) + kπ B. x = (-1)k . (π/6) + kπ C. x = -(π/2) + kπ D. x = (π/3) + k2π, k € Z E. Một đáp số khác [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [B][COLOR=green][FONT=Arial]A.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]B.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]C.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]D.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [B][COLOR=green][FONT=Arial]E.[/FONT][/COLOR][/B][COLOR=green][FONT=Arial] [/FONT][/COLOR] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [FONT=Times New Roman][SIZE=5] [/SIZE][/FONT] [/QUOTE]
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