$5d-5$

$\left(\frac{2}{5}m^2+\frac{1}{3}mn-\frac{1}{2}n^2\right)\left(\frac{2}{3}m^2+2n^2-mn\right)$

$9\cdot1\cdot\left(-3\right)$

$\int\frac{4x^3}{\sqrt{1-8x^4}}dx$

$\frac{d}{dx}\left(\arcsin\left(u\right)\right)$

$\int\:\left(1+tan^2x\right)sen^{-4}x.cos^4x\:dx$

$\int5x^2\cdot\cos\left(3x\right)dx$