$\frac{dy}{dx}=\frac{6x^2+4}{3y^2-4y}$

$1+\cot^230$

$\lim_{x\to1}\left(\frac{x^2-3x-2}{x^2-1}\right)$

$\int\frac{1}{y^2\sqrt{\left(y^2+25\right)}}dy$

$\frac{\left(x\:-\:sin\:x\right)}{x}$

$\left(6x^4\:+\:3y^3\right)\:\left(6x^4\:-\:3y^3\right)$

$\frac{dy}{dx}\left(2y^2-xy-5+x^3=0\right)$