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2 f(t) = sint g(x, y, z)=x² + y² D(f) = D(g) = Dg= D (fog) (t) = D(f) D(g) = =

2 f(t) = sint g(x, y, z)=x² + y² D(f) = D(g) = Dg= D (fog) (t) = D(f) D(g) = =

Advanced Engineering Mathematics
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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9(x,y,2)=xа+уг f(t) = sint D (f) = D(g) =Dg== - D (fog) (t) = D (f) D (g) = Sole stelb
Transcribed Image Text:9(x,y,2)=xа+уг f(t) = sint D (f) = D(g) =Dg== - D (fog) (t) = D (f) D (g) = Sole stelb
Expert Solution
Step 1: Explanation

This is just directional derivative or simply gradient in several variable.

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