Find the directional derivative of the function f(x, y) = x 2 y 2 4y at

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Find the directional derivative of the function f(x, y) = x2y2 – 4y at the point (2, –1) in the direction of the vector v = 2i + 5j.

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Calculus

ISBN: 9780495011606

6th Edition

Authors: James Stewart

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