| (VxF)-n ds and (b) O n ds if F = (x + 2y)i – 3z j + xk, $ = 4x +3y - 2z, Evaluate (a) and S is the surface of 2x +y +2z = 6 bounded by x = 0, x = 1, y =0 and y = 2. Ans. (a) 1 (b) 2i + j + 2k

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