$\frac{\sqrt{2}+\sqrt{2}\tan\left(67.5\right)}{2}=\sqrt{2}+1$

$12-\left(-27\right)$

$sin\left(arcsin\left(\frac{6}{7}\right)+arccos\left(-\frac{3}{4}\right)\right)$

$-\frac{60}{30}$

$\frac{x^{6a}-z^{8b}}{x^{3a}-z^{4b}}$

$\frac{dy}{dx}=\frac{ax\left(x^2+1\right)}{x^2-25}$

$64m^6+216n^9$