Integrate $\int \frac{x^2}{(x \sin x + \cos x)^2}dx$
71982
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
105765
Integrating $\frac{x^k }{1+\cosh(x)}$
67608
Integration of $1/(x^2+x\sqrt{x})$
71611
Evaluating $\int\sqrt{\frac{1-x^2}{1+x^2}}\mathrm dx$
39629
Indefinite integration of $\int \frac{1}{1+\sqrt{x^2+2x+2}}dx$
117113
Integration of $x^2 \sin(x)$ by parts
153867
Evaluate $ \int_{0}^{\frac{\pi}2}\frac1{(1+x^2)(1+\tan x)}\:\mathrm dx$
32312
Evaluating the integral $\int \frac{x^2+x}{(e^x+x+1)^2}dx$
147641
How to evaluate $\int \frac { \sin x+\cos x }{ \sin^4 x+\cos^4x}\, dx$?
90573
Indefinite integral $\int(\sin x)^2/(x\cdot\cos x-\sin x)^2\,dx$
115992
Integrating $\frac{\log(1+x)}{1+x^2}$
144811
Calculate $\int_0^{2\pi} \frac{1}{2+\sin(x)} \ dx$
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$
6549
What is the integral of $\sin(\cos x)$?
117101
Integrate $\int \frac{dx}{\sqrt{-ax^2 + bx +c}} $
100485
How do I evaluate the integral $\int_0^{\infty}\frac{x^5\sin(x)}{(1+x^2)^3}dx$?
6571
A Challenging Integral $\int_0^{\frac{\pi}{2}}\log \left( x^2+\log^2(\cos x)\right)dx$