Determine Whether the Function Is Periodic $$f ( x ) = \left| \cos \frac { 1 } { 4 } x \right|$$

question 403

Multiple Choice

Determine whether the function is periodic. If it is periodic, find the period.
- $$f ( x ) = \left| \cos \frac { 1 } { 4 } x \right|$$

• A) \(4 \pi\)
• B) Not periodic
• C) \(2 \pi\)
• D) \(\pi\)

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