If f, (a,b) = f, (a,b) = 0, does it follow that f has a local maximum or local minimum at (a,b)? Explain.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.6: The Inverse Trigonometric Functions
Problem 92E
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If f, (a,b) = f, (a,b) = 0, does it follow that f has a local maximum or local minimum at (a,b)? Explain.
Choose the correct answer below.
O A. No. Cne (or both) of f, and f, must also not exist at (a,b) to be sure that f has a local maximum or local minimum
O B. No. It follows that (a,b) is a critical point of f, and (a,b) is a candidate for a local maximum or local minimum.
O C. Yes. The point (a,b) is a critical point and must be a local maximum or local minimum.
O D. Yes. The tangent plane to f at (a,b) is horizontal. This indicates the presence of a local maximum or a local minim
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Transcribed Image Text:If f, (a,b) = f, (a,b) = 0, does it follow that f has a local maximum or local minimum at (a,b)? Explain. Choose the correct answer below. O A. No. Cne (or both) of f, and f, must also not exist at (a,b) to be sure that f has a local maximum or local minimum O B. No. It follows that (a,b) is a critical point of f, and (a,b) is a candidate for a local maximum or local minimum. O C. Yes. The point (a,b) is a critical point and must be a local maximum or local minimum. O D. Yes. The tangent plane to f at (a,b) is horizontal. This indicates the presence of a local maximum or a local minim Click to select your answer. Terms of Use FresyTerms
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