$\cos\left(\arcsin\left(u\right)-\arccos\left(v\right)\right)$

$6n^2-6m^2$

$\sec\left(x\right)-\cos\left(x\right)-\sin\left(x\right)\tan\left(x\right)$

$\left(3z^2-7\right)^2$

$\frac{3x^5-x^2+1}{\sqrt{x}+7x^{-2}}$

$\int x^3\sqrt{x^2-1}dx$

$\left(x^2-5x+1\right)\cdot\left(2x-3\right)$