6. Say f(x) = 2x2² + cos x. Determine which of the statements below are true. (More than one may be true.) Show work and explain your choices-meaning: make sure you mention any relevant theoretical result that supports your conclusion (Hint: look at the theorems in the Maxima and Minima section, such as Fermat's theorem, as well as the 1" and 2nd derivative tests.). i. f(x) has a critical point at x = 0. ii. f(x) has a local maximum at x = 0. iii. f(x) has a local maximum at x = 0. f(x) has an inflection point at x = 0. iv.

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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6. Say f(x) = 2x² + cos x. Determine which of the statements below are true. (More than one
may be true.)
Show work and explain your choices-meaning: make sure you mention any relevant
theoretical result that supports your conclusion (Hint: look at the theorems in the Maxima
and Minima section, such as Fermat's theorem, as well as the 1" and 2nd derivative tests.).
i. f(x) has a critical point at x = 0.
i. f(x) has a local maximum at x = 0.
iii. f(x) has a local maximum at x = 0.
iv.
f(x) has an inflection point at x = 0.
Transcribed Image Text:6. Say f(x) = 2x² + cos x. Determine which of the statements below are true. (More than one may be true.) Show work and explain your choices-meaning: make sure you mention any relevant theoretical result that supports your conclusion (Hint: look at the theorems in the Maxima and Minima section, such as Fermat's theorem, as well as the 1" and 2nd derivative tests.). i. f(x) has a critical point at x = 0. i. f(x) has a local maximum at x = 0. iii. f(x) has a local maximum at x = 0. iv. f(x) has an inflection point at x = 0.
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