$\int_s^{\pi}\left(\frac{v^2\sin^2\left(x\right)}{2\pi}\right)dx$

$\int_0^{\infty}3xe^{-x}dx$

$\log\left(x-21\right)=\log\left(x\right)+\log\left(8\right)$

$\frac{x+1}{9}=\frac{x+3}{3}$

$-2x+7x-10=0$

$+5+7-1+\left(-62-4+68\right)-\left(-17+1-6\right)$

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