How to solve $\int \tan^2(x) \sec (x) \ dx$?
122395
Integrating $\sec\theta\tan^2\theta d\,\theta$
11059
Verify the identity: $\tan^{-1} x +\tan^{-1} (1/x) = \pi /2$
46706
Integral $\int_0^2 \frac{\arctan x}{x^2+2x+2}dx$
88989
Why $x<\tan{x}$ while $0<x<\frac{\pi}{2}$?
15185
Simplest way to integrate $\int \frac{1}{1+\tan x}dx,$
98787
Calculation of $\int \sqrt{\tan x+2}dx$
136409
Verify $\int\sec x\ dx=\frac12 \ln \left\lvert\frac{1+\sin x}{1-\sin x}\right\rvert + C$
75562
How to integrate $\int x^2 \sin^2(x)dx$
67158
Solve $y'-\int_0^xy(t)dt=2$
4693
what is the$ \int \sin (x^2) \, dx$?
143585
Solve the integral $\frac 1 {\sqrt {2 \pi t}}\int_{-\infty}^{\infty} x^2 e^{-\frac {x^2} {2t}}dx$
26814
Solve $\int \frac{1}{\sin ^{\frac{1}{2}}x \cos^{\frac{7}{2}}x}dx$
42279
Evaluating the indefinite integral $ \int \sqrt{\tan x} ~ \mathrm{d}{x}. $
142673
Evaluate $\tan^{2}(20^{\circ}) + \tan^{2}(40^{\circ}) + \tan^{2}(80^{\circ})$
106544
Solve $ \frac{2}{\pi}\int_{-\pi}^\pi\frac{\sin\frac{9x}{2}}{\sin\frac{x}{2}}dx $
89387
Integrate : $\int \frac{x^2}{(x\cos x -\sin x)(x\sin x +\cos x)}dx$
71700
How to solve $\int_0^\pi{\frac{\cos{nx}}{5 + 4\cos{x}}}dx$?