$\frac{1}{\cot\left(x\right)\csc\left(x\right)\sec^4\left(x\right)}$

$27y^3+54y^2+12y+36y$

$\int10xcsc^2\left(8x^2-9\right)dx$

$\int\:\frac{-x^2+24x-20}{x^3-4x}dx$

$g\left(t\right)\:=\:4\:sec\left(t\right)\:+\:4\:tan\left(t\right)$

$-9+4\cdot\left(-2\right)+4$

$-4w-2\left(-5z+w\right)-5z$