Non Trivial Solutions of Tangent Equation tan x = x
117785
Express solutions of equation $ \tan x= x $ in closed form
145559
Trigonometry problem on product of trig functions.
16946
How many solutions for an equation with simple restrictions
82286
Derivation of asymptotic solution of $\tan(x) = x$.
86894
Finding solution of a Trigonometric equation
113407
Finding all solutions for a system of equations with constraint on the sum of absolute values
81337
How to solve $(1-\tan^2x)\sec^2x+2^{\tan^2x}=0$
86548
First-order trigonometric differential equation
84893
Solutions of the equations of the degree 5 and more
47206
$-1 = 0$ by integration by parts of $\tan(x)$
121084
Right triangles and tangent lines
105302
Solutions of bivariate cubic Diophantine equation
81012
Solution of a Sylvester equation?
142122
Finding equation of the parabola from tangent information
87713
How to propagate uncertainty to $\tan(x)$?
37448
Two Circles and Tangents from Their Centers Problem
84730
use the fact that $\tan 2x=\sin2x \ /\cos2x$ to prove that $\tan 2x=2\tan x/(1-\tan^2x)$