$\left(a^2b^3\right)^{-2}\left(a^5b^4\right)^{-3}$

$\left(6\right)\left(-3\right)\left(0\right)\left(8\right)$

$\int\:\frac{6x}{e^x}dx$

$\frac{1}{\cos\left(a\right)}-\frac{1}{\sin\left(a\right)}$

$\sin\left(x\right)\cdot\frac{1}{\tan\left(x\right)}=\csc\left(x\right)$

$\frac{\left(x^3+y^3\right)}{x-y}$

$\int\frac{30x}{3x+10}dx$