Can you solve $\int 1/(x^2+1)^2\, dx$
104094
Integral of $\frac{1}{(1+x^2)^2}$
6830
Find $\int\frac1x\sqrt\frac{1-x}{1+x}\ dx$
157931
Contour integration of $\int \frac{dx} {(1+x^2)^{n+1}}$
70830
How to evaluate $\int_{0}^{\infty}\exp(-x^2-1/x^2)dx$?
16800
Integrating $\int_0^{2\pi} \frac1{a\cos(t)+b\sin(t)+c}dt$ with $\sqrt{a^2+b^2}=1<c$
120085
Compute $\int \frac{-3}{2x^2-x-1} dx$
149341
Help me evaluate $\int_0^1 \frac{\log(x+1)}{1+x^2} dx$
88757
Calculus 2 integral $\int {\frac{2}{x\sqrt{x+1}}}\, dx$
83325
Integral of $\frac{\sqrt{x^2+1}}{x}$
69978
Evaluating $\int_1^\infty \frac{1}{x(x^2+1)}\ dx$
47452
Calculus Question: $\int_0^1\frac{(x-x^2)^4}{1+x^2}dx$
29680
How to determine $\int x^2 e^{-x^2}\mathrm dx$?
88670
Evaluating $\int \frac{1}{{x^4+1}} dx$
84765
Evaluating $\int_{-\infty}^{\infty}\frac{1}{(x^2+b^2)^2}dx$
58909
Evaluation of $\int\frac{dx}{x+ \sqrt{x^2-x+1}}$
132388
Calculate $I=\int_0^1\frac{\ln(1+x)}{1+x^2}\,dx$
147479
Evaluate $\int \frac{2-3x}{2+3x}\sqrt\frac{1+x}{1-x}dx$