Calculate using integration by parts $\int \frac{x^2}{(x^2+1)^2}\,dx$
70013
How to calculate $\int \frac{x^2 }{(x^2+1)^2} dx$?
117446
calculation of $\int_{0}^{1}\tan^{-1}(1-x+x^2)dx$
53519
Finding $\int_0^1{\frac{x^4(1-x)^4}{1+x^2}}dx$
8606
Calculate $\int^{n+1}_1 \frac{(\{x\})^{[x]}}{[x]}dx$ where $n\in\mathbb{N}$, $[x]$ is the integer part of $x$ and $\left\{ x\right\} =x-[x]$.
157931
Contour integration of $\int \frac{dx} {(1+x^2)^{n+1}}$
69978
Evaluating $\int_1^\infty \frac{1}{x(x^2+1)}\ dx$
146338
How to evaluate $\int\frac{1+x^4}{(1-x^4)^{3/2}}dx$?
24832
Integrating $\frac{1}{\sqrt{ax^2+bx+c}}$ for $a<0$
18672
Integrate $\int_{0}^{\pi}{\frac{x\cos{x}}{1+\sin^{2}{x}}dx}$
42789
Integrate by Partial Fractions or Substitution
8225
Calculating the integral $\int_{1/3}^{3}\frac{\arctan(x)}{x^2-x+1}\;\mathrm{d}x$
144811
Calculate $\int_0^{2\pi} \frac{1}{2+\sin(x)} \ dx$
93205
Compute: $\int_{0}^{1}\frac{x^4+1}{x^6+1} dx$
17996
Integral $\int_0^1 \frac{\ln(x+\sqrt{1-x^2})}{x}dx$
130736
Integrating $\int^0_\pi \frac{x \sin x}{1+\cos^2 x}$
84683
integrate $dx/(a^2 \cos^2x+b^2 \sin^2x)^2$
59667
Evaluating $\int_0^\infty\frac{\sin(x)}{x^2+1}\, dx$