kimxakiem2507
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- Xu
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\[I_1=\int_{\frac{1}{\sqrt2}}^1\frac{lnx}{x^2(x^2+1)\sqrt{x^2+1}}dx\]
\[I_2=\int\frac{sinx+cosx}{sin^2x+asinxcosx+bcos^2x}dx\ \ \ (a,b\ :\ const)\]
\[I_2=\int\frac{sinx+cosx}{sin^2x+asinxcosx+bcos^2x}dx\ \ \ (a,b\ :\ const)\]
