$\lim_{x\to1}\left(\frac{x^4-2x^3-3x^2}{x^3-x^2}\right)$

$-2\:+\:-1\:+\:-3\:+\:+1\:+\:+3\:$

$sin^2\left(60\right)$

$\int\left(-2x^5+2x-3\right)dx$

$\frac{1}{\left(1-\frac{x}{5}\right)^2}$

$\int\sqrt{x}\left(\frac{1}{\sqrt[3]{x}}+\sqrt[4]{x}\right)dx$

$a^4b-2a^3b+a^3b^2-2a^2b^2$