$\lim_{n\to200}\left(\sin\left(n\pi\right)\right)$

$\left(\sqrt[4]{7}\right)^{16}$

$\int\:sec\:\frac{x}{3}tan\:\frac{x}{3}\:dx$

$\left(\frac{1}{2}n-\frac{1}{2}m\right)^2$

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

$\left(x-6\right)\left(x+b\right)$

$\int_0^1\frac{3}{\sqrt{4-x^2}}dx$