$\int_{\frac{-\pi}{2}}^{\frac{3\pi}{2}}\left(\sqrt{16-16\cos^2t}\right)dt$

$\lim_{n\to\infty}\left(\frac{nx}{1+nx^2}\right)$

$64m^2\:-n^2$

$\:-3+\left(-4\right)-9-\left(-1\right)$

$2x^3-3x^2-2x$

$a^{-\frac{2}{5}}y^{\frac{1}{3}}$

$\frac{3^2\cdot x^{20}}{5^3\cdot3^4\cdot x^{15}}$