$\lim_{x\to4}\left(\frac{\sqrt[3]{x+4}-2}{2-\sqrt{2}}\right)$

$\int_0^{\frac{\sqrt{3}}{2}}\left(\frac{1}{1+4x^2}\right)dx$

$\frac{5s^{-7}}{10s^{-9}}$

$\lim_{x\to\infty}\left(\frac{1}{cos\left(x\right)}\right)$

$-6m+8n+5-m-m-6m-1$

$\int\frac{-3x+8}{x^2-2x+4}dx$

$-225-y^2$