$\lim_{x\to\infty}\left(\frac{0.5^x}{\frac{1}{x}}\right)$

$\frac{-6}{x+5}\ge1$

$4\left(9f+1\right)+2$

$\left(\frac{4}{2a+3}\right)-\left(\frac{1}{4a-1}\right)$

$\int\left(v\right)^2\left(1-v\right)dv$

$\frac{dy}{dx}=e^{3x+y^2}$

$\left(3x\right)^3-3\left(3x\right)^2\left(1\right)+3\left(1ab\right)\left(5\right)^2+\left(5\right)^3$