Let p(x, y, z) = (x +2)y+xz². (a) Compute the vector field F = Vy. (b) Compute Jo F dr, where C is the piecewise-linear path starting at (0, 1, 1), traveling C straight to (2,-1, 3), and terminating at (-1,3,0). (c) Compute the circulation of F around the tilted ellipse parametrized by r(t)= (cost, 2 sint, cost), 0 ≤t≤ 2π.

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