Question

its not x^2z+3z^3 & 89/3 or x^2z+3z^3 & 37

Consider F and C below. F(x, y, z) = (2x2+y2) i + 2xy j + (x2 + 92) k (a) Find a function f such that F = Vf. rx, y, z) = (b) Use part (a) to evaluate Vf- dr along the given curve C.