16. If A is a unit vector, then A V is callod the directional dorivative of f in the direction . Find the directional derivative of / (x, y)x'yz in the direction 41-3k at a point (1,-1,1).
16. If A is a unit vector, then A V is callod the directional dorivative of f in the direction . Find the directional derivative of / (x, y)x'yz in the direction 41-3k at a point (1,-1,1).
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:09:12
4G I
16. Il A is a unit vector, then t vf is called the directional derivative of f in the
direction n.
Find the directional derivative of f (x, y) = x'yz in the direction 41-3 k at a
point (1, -1,1)
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