Problem #$4.$ MULTIPLE INTEGRATION

A$)$ Evaluate the following double integral as it is written:

${\displaystyle \underset{1}{\overset{3}{}}}{\displaystyle \underset{1}{\overset{e^x}{}}}\frac{x}{y}dydx$

B$)$ Evaluate the following triple integral in spherical coordinates:

${\displaystyle \underset{0}{\overset{2}{}}}{\displaystyle \underset{0}{\overset{\frac{}{2}}{}}}{\displaystyle \underset{0}{\overset{2cos()}{}}}{}^{2}sin()ddd$