How can I calculate $\int \frac{\sec x\tan x}{3x+5}\,\mathrm dx$
61443
So close yet so far Finding $\int \frac {\sec x \tan x}{3x+5} dx$
74822
How to evaluate $\int_{0}^{\pi }\theta \ln\tan\frac{\theta }{2} \, \mathrm{d}\theta$
61328
Resolve $\lim_{x \to 0} \frac {\tan 3x}{\tan 5x}$
53438
I need assistance in integrating $ \frac{x \sin x}{1+(\cos x)^2}$
15185
Simplest way to integrate $\int \frac{1}{1+\tan x}dx,$
8606
Calculate $\int^{n+1}_1 \frac{(\{x\})^{[x]}}{[x]}dx$ where $n\in\mathbb{N}$, $[x]$ is the integer part of $x$ and $\left\{ x\right\} =x-[x]$.
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$
96759
How do you evaluate the integral $\int\frac{x^2-1}{(x^4+3 x^2+1) \tan^{-1}\left(\frac{x^2+1}{x}\right)}\,dx$?
104384
Trigonometric identity: $\frac {\tan\theta}{1-\cot\theta}+\frac {\cot\theta}{1-\tan\theta} =1+\sec\theta\cdot\csc\theta$
42391
Calculate $\tan9^{\circ}-\tan27^{\circ}-\tan63^{\circ}+\tan81^{\circ}$
42992
How do I integrate the following? $\int{\frac{(1+x^{2})\mathrm dx}{(1-x^{2})\sqrt{1+x^{4}}}}$
153867
Evaluate $ \int_{0}^{\frac{\pi}2}\frac1{(1+x^2)(1+\tan x)}\:\mathrm dx$
82170
Solve $x = \frac{1}{2}\tan(x)$
60275
calculation of $\int\frac{1}{\sin^3 x+\cos^3 x}dx$ and $\int\frac{1}{\sin^5 x+\cos^5x}dx$
117101
Integrate $\int \frac{dx}{\sqrt{-ax^2 + bx +c}} $
70013
How to calculate $\int \frac{x^2 }{(x^2+1)^2} dx$?
105619
Finding $\int_{0}^{\pi/2} \frac{\tan x}{1+m^2\tan^2{x}} \mathrm{d}x$