3. Verify the divergence theorem for A = 2xy i – yj + 4xz k taken over the region in the first octant bounded by y2+z2 - 9 and x= 2. Ans. 180 4. Verify V.rdV where (a) S is the sphere of radius 2 with center at (0,0,0), (b) r.n ds = S is the surface bounded by the paraboloid z - 4-( +y) and the xy plane. Ans. (a) 3277 (b) 24 T

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