$\lim_{x\to0}\left(\frac{tan\left(2x\right)}{x^3}\right)$

$\left(\frac{1}{2}ab+3c\right)^3$

$\frac{1}{2}x^2\frac{2}{8}xy\frac{5}{6}y^2-\frac{1}{8}xy\frac{8}{4}x^2-\frac{5}{6}y^2$

$\frac{1+tan\left(x\right)}{sin\left(x\right)+cos\left(x\right)}=sec\left(x\right)$

$9+\frac{8}{2}$

$\int\frac{2^{\sin\left(x\right)}}{\sec\left(x\right)}dx$

$\int\csc x\tan x^2dx$