$\sin^2x\cot x\cos x=\sin x$

$\frac{dy}{dx}+\frac{y}{50}=4$

$a-\left(-5\right)=8$

$\left(4x^2+\frac{2}{5}\right)\left(-\frac{2}{5}+4x^2\right)$

$\lim_{x\to\infty}\left(\frac{2^n}{2^{2^n}}\right)$

$\int\frac{3x^3}{\left(4x^4-2\right)^{\frac{8}{3}}}dx$

$-a^4\:b^2\:c+5a^3\:bc^2+a^2\:b$