$\int_0^{\pi}3\cos^2\:x\:dx$

$\lim_{x\to0}\left(\frac{\cot\left(8x\right)\cdot8x-1}{8x^1}\right)$

$\left(\frac{3}{5}v+\frac{5}{9}u^3\right)\left(\frac{3}{5}v-\frac{5}{9}u^3\right)$

$\int_0^{\pi}\frac{d}{4-3\cos}$

$3\tan\pi x^2$

$\frac{dy}{dx}=\frac{y-2}{y+2}$

$2m+3m+9m-4m$