Compute $\int\frac{1}{1+x^4}dx$
88670
Evaluating $\int \frac{1}{{x^4+1}} dx$
6573
Compute $\int \frac{\sin(x)}{\sin(x)+\cos(x)}\mathrm dx$
119572
Finding the integral of $\frac{x}{e^x + 1}$
141892
How to evaluate $\int_0^\infty \frac{1}{x^n+1} dx$
101587
Calculating $\int_{- \infty}^{\infty} \frac{\sin x \,dx}{x+i} $
110731
How to compute $\int_{0}^{1}\int_{0}^{1} \frac{x-y}{(x+y)^3} dxdy$
26096
Evaluating $\int \frac{\sin{x}+\cos{x}}{\sin^4{x}+\cos^4{x}} \mathrm dx$
31964
Evaluating $\int_0^{\infty}\frac{\ln(x^2+1)}{x^2+1}dx$
104094
Integral of $\frac{1}{(1+x^2)^2}$
146338
How to evaluate $\int\frac{1+x^4}{(1-x^4)^{3/2}}dx$?
158760
How calculate the indefinite integral $\int\frac{1}{x^3+x+1}dx$
75423
Computing $\int_0^\infty\frac{1}{(1+x^{2015})(1+x^2)}$
77983
Shortest method for $\int_{0}^{1}\frac{x^{4}\left(1-x\right)^{4}}{1+x^{2}}$
8606
Calculate $\int^{n+1}_1 \frac{(\{x\})^{[x]}}{[x]}dx$ where $n\in\mathbb{N}$, $[x]$ is the integer part of $x$ and $\left\{ x\right\} =x-[x]$.
91821
Integral of type $\displaystyle \int\frac{1}{\sqrt[4]{x^4+1}}dx$
104691
Integration of $\int_{0}^{1} \frac{x^k}{1-x} dx$
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$