$\left(\frac{4}{z}\right)^3$

$\frac{d}{dx}\left(xe^y+3y=0\right)$

$\frac{\left(8sin\left(x\right)+tan\left(x\right)\right)}{tan\left(x\right)}$

$\frac{dy}{dx}=\frac{4yln\left(y\right)}{x}$

$\int_0^{\frac{x}{2}}\left(\tan^2x\right)dx$

$\frac{4x-3}{x^4+2x^3+3x^2}$