$\lim_{n\to\infty}\left(\frac{2^n}{5^{n-1}}\right)$

$\frac{5-0}{4}+\frac{3+0}{2}\ge\frac{0}{6},0-\frac{0}{2}-\frac{0}{3}\le0$

$1+3+3+1$

$\int_o^{\frac{\pi}{2}}\left(2-\sin\left(x\right)\right)^2dx$

$\int\left(\frac{1}{\left(x-1\right)\left(x+3\right)}\right)dx$

$\int\frac{x}{\left(x^2+2x+1\right)\left(x^2+2x+2\right)}dx$

$\left(2m^2n^2\right)^2\left(2m^2n\right)^3$