bai 1 giai phuong trinh 6(x-1)[can(x+1)] + (x^2 +2)[can(x-1)-3] = x (x^2+2)
bai 2 so sanh A va B
A= 1/1^2 +1/2^2+ 1/3^2 +... + 1/50^2
B= 165/101
bai 3 cho tam giac ABC vuong can tai A gia su trong tam giac co diem M thoa man dieu kien ^MBA = ^MAC = ^MCB tinh MA/MB/MC
(BAI HINH GIAI THEO CHUONG TRINH LOP 7 NHE
Bài 4 (giai phuong trinh GgggggggggggggggggGGG
x^2 + (x^2 + 1)^2 = 5- x.can(2x^2 + 4) 1)^2 = 5- x.can(2x^2 + 4)?
bai 2 so sanh A va B
A= 1/1^2 +1/2^2+ 1/3^2 +... + 1/50^2
B= 165/101
bai 3 cho tam giac ABC vuong can tai A gia su trong tam giac co diem M thoa man dieu kien ^MBA = ^MAC = ^MCB tinh MA/MB/MC
(BAI HINH GIAI THEO CHUONG TRINH LOP 7 NHE
Bài 4 (giai phuong trinh GgggggggggggggggggGGG
x^2 + (x^2 + 1)^2 = 5- x.can(2x^2 + 4) 1)^2 = 5- x.can(2x^2 + 4)?