$\frac { 1 } { 2 } z - 12 = 36$

$\lim_{x\to0}\left(\frac{1-\cos\left(n\right)}{n^2}\right)$

$f\left(x\right)=6\sqrt[3]{x}-\frac{6}{\sqrt{x}^3}$

$\:\:\left(a^3b^3-8\right)\left(a^3b^3+15\right)$

$ln\left|y\right|+c=-\frac{1}{2}\ln\:\left|x^2-9\right|+c$

$\int\frac{6m}{4+m^2}dm$

$\frac{d^2}{dx^2}\left(y^2-x^2-\tan\left(2x\right)\right)$