a) Find the directional derivative of S = In(2r +3y) at point (-1,1) in the direction of 4i -3i
a) Find the directional derivative of S = In(2r +3y) at point (-1,1) in the direction of 4i -3i
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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![Q1:
a) Find the directional derivative of S = In(2r +3y) at point (-1,1) in the direction
of 4i -3j
b) If W = F(x,y), where x =r cose and y =rsin0. Find W +w](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff885cfe0-d0b9-4c0f-ae39-8dfbfa43a591%2F391ee56b-588a-479b-bc53-bb2013b15a18%2Fphgcuws_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q1:
a) Find the directional derivative of S = In(2r +3y) at point (-1,1) in the direction
of 4i -3j
b) If W = F(x,y), where x =r cose and y =rsin0. Find W +w
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