Weird Integration problem: $\int_{-2}^{2} \frac{x^2}{1+5^x}dx$
31529
Integrating $\int^2_{-2}\frac{x^2}{1+5^x}$
40067
Integrating $\int\frac{x^3}{\sqrt{9-x^2}}dx$ via trig substitution
115992
Integrating $\frac{\log(1+x)}{1+x^2}$
34368
Problem when integrating $e^x / x$.
71611
Evaluating $\int\sqrt{\frac{1-x^2}{1+x^2}}\mathrm dx$
71982
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
123532
An incorrect answer for an integral
120425
Bizarre Definite Integral
104691
Integration of $\int_{0}^{1} \frac{x^k}{1-x} dx$
75267
integrate the following function: $\int_{0}^{\infty} \frac{\log{x}}{x^{2}+a^{2}} \ dx$
86794
Integrate $\int \frac{25 - x^2}{x^4} \operatorname d\!x$
85736
Evaluating the integral $\int_{-1}^{1} \frac{\sqrt{1-x^{2}}}{1+x^{2}} \, dx$ using a dumbbell-shaped contour
100401
Evaluate $\int \frac{1}{(x^2+1)^2}dx$
138355
Improper rational/trig integral comes out to $\pi/e$
24832
Integrating $\frac{1}{\sqrt{ax^2+bx+c}}$ for $a<0$
81533
Integrating $\int_1^2 \int_0^ \sqrt{2x-x^2} \frac{1}{((x^2+y^2)^2} dydx $ in polar coordinates
105260
How to integrate $\int\sqrt{x^2+1}dx$