Answered: 18 > (a) Find the direction for which… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.3: Lines

Problem 21E

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Question

18
>
(a) Find the direction for which the directional derivative of the function f (x, y) = 7xy² + 5x² is a maximum at P = (-1,2).
(Use symbolic notation and fractions where needed. Give your answer in vector form.)
direction:
(b) Find the maximum value of the directional derivative.
(Use symbolic notation and fractions where needed.)
||Vf(-1,2) || =

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