$\lim_{x\to-1}\left|x+1\right|$

$\left(x+y\right)^{-\frac{1}{3}}$

$\int_0^{+\infty}\frac{1}{\left(x+1\right)^{\frac{3}{2}}}dx$

$\frac{\sin\left(x\right)}{\csc\left(x+1\right)}$

$7x+5-3x+6x+7+7$

$2\left(3^2\right)+3\left(3\right)-1$

$cotx\left(cot\left(-x\right)+tan\left(-x\right)\right)$