$\frac{xy}{x^2y^2}$

$\int_{-1}^2\left(\frac{1}{1+\frac{y^2}{9}}\right)dy$

$5^3\cdot5$

$\frac{d}{dx}\left(\ln\left(x\right)=\left(x\right)^{\sin\left(x\right)}\right)$

$\lim_{x\to0}\left(-\frac{1^x}{x^2-x}\right)$

$\frac{x^2\cos\left(x\right)}{\sin\left(x\right)}$

$\left(x+y+1\right)^3$