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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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Answer only letter b
Determine the relative extrema of f, if there
are any, and locate any saddle points.
a. f (x, y)
b. f (x, y)
〃
1
xy + = +
ху
X Y
4
3
= x² = 2x² + y² − ³y
Transcribed Image Text:Determine the relative extrema of f, if there are any, and locate any saddle points. a. f (x, y) b. f (x, y) 〃 1 xy + = + ху X Y 4 3 = x² = 2x² + y² − ³y
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