Solving $2\tan(2x) = 3\cot(x)$
129319
Weird "hidden answer" in $2\tan(2x)=3\text{cot}(x)$
86583
Taylor Series of $\tan x$
89309
How to solve this trigonometric system of equations numerically?
110408
Solving for $A$ in $Ax = b$
109706
Fast way to come up with solutions to $x(x-1)(x-2)(x-3)=1$?
61533
Solution af a system of 2 quadratic equations
84730
use the fact that $\tan 2x=\sin2x \ /\cos2x$ to prove that $\tan 2x=2\tan x/(1-\tan^2x)$
142673
Evaluate $\tan^{2}(20^{\circ}) + \tan^{2}(40^{\circ}) + \tan^{2}(80^{\circ})$
112675
Integration by parts of $\cot x$
86894
Finding solution of a Trigonometric equation
61591
Solve simple trig equation
33100
Trigonomnetric equality involving tg
42391
Calculate $\tan9^{\circ}-\tan27^{\circ}-\tan63^{\circ}+\tan81^{\circ}$
148624
Replacing Tan[x] with Sin[x]/Cos[x]
46665
Solving $\cos x+\sin x-1=0$
77810
Solving Trigonometric Derivatives
117331
Find the minimum value of $|\sin x+\cos x+\tan x+\cot x+\sec x+\csc x|$ for real numbers $x$