$\tan\left(\arctan\left(\frac{1}{3}\right)\:+\:\arctan\left(\frac{1}{7}\right)\right)$

$\frac{3y-\frac{2}{3}}{\sqrt{y^{-4}}}$

$2\cdot512$

$-x^2+2x+6$

$\int x^3\left(\sqrt{1+\left(24x^2\right)^2}\right)dx$

$\int\left(x+8\right)e^{3x}dx$

$tan\left(\theta\:-\pi\:\right)=tan\left(\theta\:\right)$