$\frac{dy}{dz}\left(y^{zy}+ln\left(\frac{y}{xz}\right)=\sqrt{3^{xy}+y}+y^x\right)$

$\int_1^e\left(\frac{\left(l+\ln\left(x\right)^2\right)}{x}\right)dx$

$4^2-4\left(5\right)\left(-2\right)$

$\left[-2.\left(-7-1\right)\right]+\left(-5\right)$

$\lim_{x\to-8}\left(x+1\right)$

$\frac{1}{\sin\left(\frac{y}{2}\right)\cdot\cos\left(\frac{y}{2}\right)}$

$-\frac{540}{-15}$