$\int_{\frac{\pi}{-4}}^{\frac{\pi}{6}}\left(-\sec\left(x\right)\tan\left(x\right)\right)dx$

$\frac{7-\left(-9\right)}{-1-1}$

$\ln\left(\frac{1}{4^f}\right)$

$\frac{s^4-4s}{6s^3}$

$\frac{\sin\left(x\right)+\cos\left(x\right)^2}{\sin\left(x\right)}-1$

$a\cdot x=0$

$\left(8-y^{3}\right)^{3}$