$\int_0^4\left(\frac{8e^{-\frac{4}{x}}}{x^2}\right)dx$

$cos\left(x\right)y'-tan\left(x\right)y=7tan\left(x\right)$

$\sqrt[3]{\frac{1}{k^{-2}\cdot\:k}}$

$-m-5m$

$\left(x-1\right)+\left(5x\right)+\left(1+y\right)$

$11x\:2\:y\:3\:\left(16x\:2\:y\:3\:\right)$

$\frac{cos^2x+sinx\left(1+sinx\right)}{\left(\cos\left(x\right)\right)^2}=\frac{1}{sinx}$