$\left(sin\left(2x\right)-cos\left(2x\right)\right)^2=2$

$4x+10\le-2x-8$

$\frac{\left(x-3\right)}{\left(x+6\right)}-\frac{\left(x+2\right)}{\left(x-6\right)}+\frac{\left(2x-7\right)}{x^2-36}$

$\frac{d}{dx}\left(\frac{1}{2}\left(e^x+e^{-x}\right)\right)$

$-\left(s-2\right)=0$

$\int cot\left(25x\right)dx$

$x\sqrt{x^2}+4xd$