Question: Let (x, y) = xy 2 and r(t) = (1/2t 2 , t 3 ). (a) Calculate Vf and r' (t). d (b) Use the

Let ƒ(x, y) = xy2 and r(t) = (1/2t2, t3).

(a) Calculate Vf and r' (t). d (b) Use the Chain Rule for Paths to evaluate(r(t)) at t = 1 and t = -1.

(a) Calculate Vf and r' (t). d (b) Use the Chain Rule for Paths to evaluate f(r(t)) at t = 1 and t = - 1.

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