In Exercises, find f x (x, y) and f y (x, y). Then find f x (2,
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In Exercises, find fx(x, y) and fy(x, y). Then find fx(2, -1) and fy(-4, 3). Leave the answers in terms of e in Exercises.
ƒ(x, y) = (7x2 + 18xy2 + y3)1/3
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