Evaluate error of $\tanh{x}$ with inequality
104272
Inequality of $\vert \text{tanh}(x)-x+\frac{x^3}{3}\vert\leq\frac{1}{8}$ for $x\in[-1/4,1/4]$
102408
Evaluate the limit $\lim_{x \to 0}{\frac{\sqrt{1+x\sin{x}}-\sqrt{\cos{2x}}}{\tan^{2}{\frac{x}{2}}}}$
62578
Using AM-GM inequality
23119
An application of Jensen's Inequality
117446
calculation of $\int_{0}^{1}\tan^{-1}(1-x+x^2)dx$
132595
$\sup_{0 \leq M \leq I_{\mathcal{H}_1}} \frac{\operatorname{Tr}[\rho M]}{\operatorname{Tr}[\sigma M]}$ satisfies Data Processing Inequality
26828
Generalization of Hölder inequality
35867
Squaring sides of an inequality
96388
Prove $\sin(x)\tan(x) > x^2$ for $x \in ( \,0, \frac{\pi}{2}) \,$
158276
Inequality problem involving square roots
106803
How to see $\cos x \leq \exp(-x^2/2)$ on $x \in [0,\pi/2]$?
153867
Evaluate $ \int_{0}^{\frac{\pi}2}\frac1{(1+x^2)(1+\tan x)}\:\mathrm dx$
42279
Evaluating the indefinite integral $ \int \sqrt{\tan x} ~ \mathrm{d}{x}. $
72961
Solving Inequalities with Gamma Function
31379
Relationship between $\tanh x$ and $\arctan x$
113475
How to compute Chebyshev bounds on probabilities: one- or two-sided inequality?
57850
Bounding an Error on the inverse.