Algebra-2

Question Analysis
This problem assesses the student's understanding of the maximum and minimum values of the cosine function.

Key Concept Explanation
The cosine function, , has a range of . The maximum value of is 1, and the minimum value is -1. These values occur at specific points within one period of the function.

Step-by-step Solution
1. Recall the range of the cosine function: .
2. The maximum value of is 1, which occurs at

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