Find the critical points of f(x) = 2 cos (3x) + 3 cos (2x) in [-3,-1]. (Give your answer in the form of a comma-separated list of values. Express numbers in exact form. Use symbolic notation and fractions where needed. Enter DNE if the function has no critical points.)
Find the critical points of f(x) = 2 cos (3x) + 3 cos (2x) in [-3,-1]. (Give your answer in the form of a comma-separated list of values. Express numbers in exact form. Use symbolic notation and fractions where needed. Enter DNE if the function has no critical points.)
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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![Find the critical points of f(x) = 2 cos (3x) + 3 cos (2x) in [−3,−π].
(Give your answer in the form of a comma-separated list of values. Express numbers in exact form. Use symbolic notation and
fractions where needed. Enter DNE if the function has no critical points.)
critical points:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbab4d56b-6c04-43e0-8382-7de5fdb1b396%2F4c7f0594-5bad-486e-a83b-d4cac17757c1%2F1mji2mi_processed.png&w=3840&q=75)
Transcribed Image Text:Find the critical points of f(x) = 2 cos (3x) + 3 cos (2x) in [−3,−π].
(Give your answer in the form of a comma-separated list of values. Express numbers in exact form. Use symbolic notation and
fractions where needed. Enter DNE if the function has no critical points.)
critical points:
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