Find the directional derivative of ((x, y) = tan-1(3xy). What is its value at the point (4,

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Find the directional derivative of ((x, y) = tan-1(3xy). What is its value at the point (4, 2) in the direction u = ((3/2)i - (1/2)j?

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Calculus

ISBN: 978-0131429246

9th edition

Authors: Dale Varberg, Edwin J. Purcell, Steven E. Rigdon

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Question Posted: Jun 21, 2016 11:06 AM

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Find the directional derivative of ((x, y) = tan-1(3xy). What is its value at the point (4,

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