Consider the vector field F and the curve C below. F(x, y) = x4y5i + x5y4j, C: r(t) = (t²- 2t, t² + 2t), ost≤1 (a) Find a potential function f such that F = Vf. f(x, y) = (b) Use part (a) to evaluate LOF. Vf. dr along the given curve C.

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