help me with the problem

Problem 5. This problem involves applying the divergence theorem to compute volumes. a) Let S be a closed smooth surface, and let denote the region enclosed by . Prove the following relation: vol(B) == # F.#dS, 1{ '5' where F = (x. y, z), vol(E) represents the volume of E, and 1 is the unit outward normal vector to the surface S. b) Use the above result to find the volume of the ellipsoid: 2 2 2 B U7 6 T s az b 2 The natural parametrization of the ellipsoid is given by: z =asin() cos(f) r(f,):={ y=bsin()sin(f) . z=ccos() where # [0, 2n] and [0, 7]