$\lim_{x\to\infty}\left(\frac{3+e^x}{11}\right)$

$\frac{d}{dx}\left(6\sin\left(6x\right)\sin^{-1}\left(4x\right)\right)$

$\frac{1}{2}\left(\frac{\sqrt[4]{2x^9y^5}}{3}\right)$

$\int x^2e^{-\frac{2r}{a}}dx$

$csc^2x=cotx+1$

$\left(2+\sqrt{y}\right)\left(2-\sqrt{y}\right)^2$

$2\frac{1}{2}2$