2. Determine the critical points of the function f: R2 → R defined by f(x, y) = e' cos x + e cosy. Show that f has no local extremum.

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter9: Multivariable Calculus
Section9.CR: Chapter 9 Review
Problem 4CR
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2. Determine the critical points of the function f : R² → R defined by
f(x, y) = e cos x + e cosy. Show that f has no local extremum.
Transcribed Image Text:2. Determine the critical points of the function f : R² → R defined by f(x, y) = e cos x + e cosy. Show that f has no local extremum.
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