$\lim_{x\to-0}\left(\frac{e^{4x}}{x^2}\right)$

$\int_1^{\infty}\left(\frac{1}{\sqrt[5]{x}}\right)dx$

$\frac{x^2+y^2}{x}=4a^2$

$|5\::\:\left(-5\right)|$

$\int wx^{az+b}dz$

$\int\left(\sin\left(\frac{x}{9}\right)\cos\left(\frac{x}{3}\right)\right)dx$

$\csc\left(\frac{2\sqrt{13}}{-6}\right)$