Integration of $\int\frac{1}{x^{4}+1}\mathrm dx$
38515
Integral of $\frac{1}{x^4+1}$
122361
Evaluate $\int_0^1\left(\frac{1}{\ln x} + \frac{1}{1-x}\right)^2 \mathrm dx$
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
105260
How to integrate $\int\sqrt{x^2+1}dx$
88670
Evaluating $\int \frac{1}{{x^4+1}} dx$
21390
How to integrate $\int_0^{\infty} \frac{e^{ax} - e^{bx}}{(1 + e^{ax})(1+ e^{bx})}dx$ where $a,b > 0$.
126576
Most efficient way to integrate $\int_0^\pi \sqrt{4\sin^2 x - 4\sin x + 1}\,dx$?
41416
Integrating $ \int_2^4 \frac{ \sqrt{\ln(9-x)} }{ \sqrt{\ln(9-x)}+\sqrt{\ln(x+3)} } dx. $
42992
How do I integrate the following? $\int{\frac{(1+x^{2})\mathrm dx}{(1-x^{2})\sqrt{1+x^{4}}}}$
18732
How do I evaluate $\int \frac{\mathrm{d}x}{e^x + 1} $?
117101
Integrate $\int \frac{dx}{\sqrt{-ax^2 + bx +c}} $
141387
Reduction Integration of $I_n=\int{\frac{x^n}{\sqrt{x^2+a^2}} dx}$
98838
How to evaluate $\int_0^1 \frac{\ln(x+1)}{x^2+1} dx$
46310
Showing that $ \int_{0}^{1} \frac{x-1}{\ln(x)} \mathrm dx=\ln2 $
39629
Indefinite integration of $\int \frac{1}{1+\sqrt{x^2+2x+2}}dx$
108554
Integrating $\int_0^\infty\frac{1}{1+x^6}dx$
105765
Integrating $\frac{x^k }{1+\cosh(x)}$