$\frac{\left(xy\right)}{z}+\frac{yz}{x^2}$

$\frac{\sqrt[a]{a}-b\sqrt{b}}{\sqrt{b}+\sqrt{a}}$

$\frac{d}{dx}\left(\frac{x\left(x+5\right)^3}{\left(9x-1\right)^2}\right)$

$\int_{\frac{\pi}{4}}^{\frac{\pi}{2}}\left(2s+\pi\right)sin2xdx$

$\left(-10-8x\right)$

$1-6x-9x^2$

$\cos\left(50\right)\sin\left(60\right)$