$\left(\frac{-2x^4y^7}{4x^2y}^2\right)$

$-2v^6\cdot8v$

$\lim_{x\to\frac{\pi}{2}}\left(\left(\frac{\pi}{2}-x\right)\tan\left(x\right)\right)^{\frac{1}{\frac{\pi}{2}-x}}$

$\left(2x\right)^{-1}$

$\left(\frac{2i}{16}\right)^3$

$\frac{m^4}{m^2}$

$\int\frac{\left(5+12x^2-x^3\right)}{x^2\left(x-9\right)\left(x-1\right)}dx$