Find the curl and the divergence of the following vector fields and then determine the curl and divergence at the point. :

a. (, , ) = 3yz + ye^z 3y . Divergence at the point (-1, 2, 5). Is the flow in or out?

b. (, , ) = ^x + ^xy + e^xyz . Give a region on the XY plane on which the flow of the field is outward?