$\frac{dx}{dy}=\frac{yx+2x-y-2}{yx-3x+y-3}$

$\frac{y}{x^2}y'\:-e^{x^3-y^2}=0$

$5x^2-10x^2-20x$

$e^x\cos\left(y\right)+\cos\left(x\right)=1$

$-15\cdot\left(-2-2\right)$

$\int_0^{1.36\cdot\:10^{-4}}\left(21\cdot\:\:sin\left(\frac{2\pi\:\:x}{0.015}\right)+6\right)^2dx$

$\frac{dy}{dx}\left(x^2+y^2=20\right)$