$\int \frac{x^{2}}{(xsinx+cosx)^{2}}dx$
$\int \frac{ln(sinx+cox)}{cos^{2}x}dx$
$\int \frac{e^{x}sinx}{(sinx+cosx)^{2}}dx$
$\int \frac{x+(x+sinx)sinx}{(1+sinx)sin^{2}x}dx$
Edited by anh1211996, 22-09-2013 - 16:54.
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