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

$v^2+26v$

$\frac{dy}{dx}=sin^2\left(x\right)$

$\int_{\frac{-\pi}{2}}^{\frac{\pi}{4}}\left(\frac{\sqrt{2}\sin\left(4x\right)}{\sqrt{1-\cos\left(4x\right)}}\right)dx$

$\int_{\:0}^x\:cos^{-1}\left(x\right)dx$

$3^{x+1}+3^{x+2}3^{x+3}+3^x$

$4x^3+10x^2-3x-x^3-1+3x^2+2x$