Decide which integral of the Divergence Theorem to use and compute the outward flux of the vector field Fequals left angle 3 x cosine y comma font size decreased by 6 sine y comma font size decreased by 6 2 z cosine y right angle across the surface​ S, where S is the boundary of the region bounded by the planes xequals 3​, yequals ​0, yequals pi​/2, zequals ​0, and zequals x.