Consider the following vector eld F (x, y, z) = yz cos (mg) i + 32 cos (my)j + sin (xy)k (a) Find a scalar eld f (m,y, 2) such that F = Vf. (b) Use your answer to (a) to evaluate the integral [033? Where 0 is the curve that starts at (0, 0, 0), goes along straight line to the point (2, 4, 8), and goes from there along a straight line to the point (1, g, 3)