$\int\frac{1}{\left(x-3\right)\left(x-2\right)\left(x-1\right)}dx$

$\frac{dy}{dx}\left(x^7lnx-\frac{1}{6}x^6\right)$

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

$\int\frac{ln\left(t\right)}{t^7}dt$

$\frac{sinxcos-sinx}{cos^2x}=\frac{1-cosx}{sinx}$

$x^2+3x+5$

$\int x^7\sin\left(2x^4\right)dx$