Find the intervals on which f is increasing and decreasing. f(x)=3 cos (3x) on [-*.*] COS Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA fis increasing on the open interval(s) f is never decreasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use inte numbers in the expression.) OB. fis decreasing on the open interval(s) f is never increasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using x as needed. Use inte numbers in the expression.) OC. fis decreasing on the open interval(s) and f is increasing on the open interval(s) (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use in numbers in the expression.) ⒸD. f is never increasing or decreasing
Find the intervals on which f is increasing and decreasing. f(x)=3 cos (3x) on [-*.*] COS Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. OA fis increasing on the open interval(s) f is never decreasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use inte numbers in the expression.) OB. fis decreasing on the open interval(s) f is never increasing. (Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using x as needed. Use inte numbers in the expression.) OC. fis decreasing on the open interval(s) and f is increasing on the open interval(s) (Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use in numbers in the expression.) ⒸD. f is never increasing or decreasing
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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Question
![Find the intervals on which f is increasing and decreasing.
f(x) = 3 cos (3x) on [-2.]
EXXOS
Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice.
OA. fis increasing on the open interval(s)
fis never decreasing.
(Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using x as needed. Use integ
numbers in the expression.)
B. fis decreasing on the open interval(s).f is never increasing.
(Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integ
numbers in the expression.)
OC. fis decreasing on the open interval(s) and fis increasing on the open interval(s)
(Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use inter
numbers in the expression.)
ⒸD. f is never increasing or decreasing](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdef75184-4297-4fea-b9dc-4d01fd1b67d5%2F64cc7185-2f9a-4c4e-b065-282f076432ec%2F5n0z293_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Find the intervals on which f is increasing and decreasing.
f(x) = 3 cos (3x) on [-2.]
EXXOS
Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice.
OA. fis increasing on the open interval(s)
fis never decreasing.
(Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using x as needed. Use integ
numbers in the expression.)
B. fis decreasing on the open interval(s).f is never increasing.
(Simplify your answer. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use integ
numbers in the expression.)
OC. fis decreasing on the open interval(s) and fis increasing on the open interval(s)
(Simplify your answers. Use a comma to separate answers as needed. Type your answers in interval notation. Type an exact answer, using as needed. Use inter
numbers in the expression.)
ⒸD. f is never increasing or decreasing
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