$\int\frac{1}{\sin^2\left(y\right)\cos^4\left(y\right)}dy$

$-3^2-7b+6$

$\left(-1\right)^{n+1}\cdot\frac{\left(x+2\right)^n}{n\cdot4^n}$

$2\cos\left(x\right)\tan\left(x\right)+\csc\left(x\right)$

$\frac{1+\cos\left(2x\right)}{1-\sin^2\left(x\right)}$

$\frac{d}{dy}\left(x^2+xy+y^3=1\right)$

$\frac{dy}{dx}-8y\:=0$