$2x+8\le x+12$

$25-\left(-32\right)$

$x^{\left(5\right)}-x^{\left(4\right)}-x^{\left(3\right)}+x^{\left(2\right)}-4x-4$

$\frac{d}{dx}\frac{\sin x-1}{\cos x}$

$\int\left(x^3\right)sin\:nx\:dx$

$\int_{\frac{\pi}{4}}^{\frac{\pi}{3}}\left(\frac{\sec\left(x\right)}{1-\sec\left(x\right)}\right)dx$

$\left(81a^{-12}b^{24}\right)^{\frac{1}{4}}$