$\int_1^{\infty}\left(\frac{a}{x^3}\right)dx$

$\frac{d}{dx}\left(e^{x^2y}=x+ay\right)$

$\frac{y}{x^2}=10$

$3\left(2\right)^2+5\left(2\right)-11$

$\frac{dy}{dx}=\frac{yx}{1-y^2}$

$\lim_{x\to\infty}\left(x\left(sin\frac{19}{x}\right)\right)$

$\ln\left(\frac{e^2}{x}\right)$