$f(w,z)=e^{wln(z)}$

$($a$)$ Use difference quotients with $h=0\mathrm{.}01$ to approximate each of the partial derivatives:

$f_w(2,4)$~~

$f_z(2,4)$~~

$($b$)$ Now evaluate the partial derivatives exactly:

$f_w(2,4)=$

$f_z(2,4)=$

$$