thank you sir

3. (a) IF U = 3x-y, V = xx- - 2y evaluate grad [(grad U) . (grad V)]. (b) Evaluate #bonds if @ = 4x + 3y - 2z. and S is the surface of 2x + y + 2z = 6 bounded by x = 0, x = 1, y = 0 and y = 2