Question

Find the first partial derivative of

s(y, z) = z ^ 2 * tan yz

Answer 1

$$\dfrac{\partial s}{\partial y}=\dfrac{z^3}{\cos^2(yz)}$$

$$\dfrac{\partial s}{\partial z}=2z\tan(yz)+\dfrac{yz^2}{\cos^2(yz)}$$