Solving $\int \frac1{\cos x}\mathrm dx$
123767
How to integrate $\int \frac{1}{\cos(x)}\,\mathrm dx$
61339
Integrating trigonometric function problem $\int \frac{3\sin x+2\cos x}{2\sin x+3\cos x}dx$
123500
Integration of $\frac {1}{1+\sin x}$
153867
Evaluate $ \int_{0}^{\frac{\pi}2}\frac1{(1+x^2)(1+\tan x)}\:\mathrm dx$
91955
Integral of $\int\frac{1}{\log x}dx$
62109
$\int_{-\infty}^{\infty} \frac{\cos(αx)}{(x^2+1)(x^2+4)} \mathrm dx$ using Complex methods
31063
Evaluating $\int_0^2(\tan^{-1}(\pi x)-\tan^{-1} x)\,\mathrm{d}x$
15625
Computing $\int_0^\infty\mathrm{d} x\frac{x}{e^x+1}$ with contour integration
14385
Solve $\int \limits_{0}^{\infty} \frac{\cos(x)}{\cosh(x)} dx$ without complex integration.
70013
How to calculate $\int \frac{x^2 }{(x^2+1)^2} dx$?
119572
Finding the integral of $\frac{x}{e^x + 1}$
51216
Different ways to tackle the integral $\int_0^1\sqrt\frac x{1-x}\,dx$
130670
Solving Integrals
150890
Evaluating $\int_{\mathbb{R}}\frac{\exp(-x^2)}{1+x^2}\,\mathrm{d}x$
142834
An integral : $\int_{-a}^a \frac{\cos(\pi n x/a)}{x^2+a^2}\mathrm dx$
24832
Integrating $\frac{1}{\sqrt{ax^2+bx+c}}$ for $a<0$
26096
Evaluating $\int \frac{\sin{x}+\cos{x}}{\sin^4{x}+\cos^4{x}} \mathrm dx$