$\lim_{x\to0}\left(\frac{x^4+3x^2+2x+1}{3x^3+2x}\right)$

$\sqrt{4\cdot25\cdot36}$

$\lim_{x\to0}\left(5sin\left(3t\right)ln\left(3t\right)\right)$

$\int\left(2x+3\right)^{-1}dx$

$\frac{dy}{dx}\:=\:\frac{6x^2}{y^2}$

$\frac{a^2+3a+2}{a^2+5a+6}$

$4x^2y^2z;\:x=-2;\:y=-4.z=-1$