$\int\left(e^{-cx}\right)dx$

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

$\lim\:_{x\to\:2}\left(x^4+2x^3+4x^2-7x-34\right)$

$\:\frac{1+4x}{-3}<5$

$\left(3-x^2\right)\left(2x+1\right)^4$

$\int\cos\left(\frac{2}{5}x\right)dx$

$\left(\frac{\infty}{\infty}\right)^{\frac{1}{\infty}}$