$\frac{d}{dx}\left(cos^2\left(3x-5\right)\right)$

$4m\:-\:\left(8m\:+\:2\right)^3$

$\lim_{x\to-2}\left(\frac{3x^2+4x-4}{x+2}\right)$

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

$-26-\left(-64\right)+\left(-93\right)$

$\int\frac{2x+2}{x^2+10x+24}dx$

$\frac{d}{dx}\left(\ln\left(x^2\right)-\arctan\left(\frac{x}{4}\right)\right)$