Question #6452502Fill in the Blank
Algebra-2
Question
If , then .
Answer & Analysis
Analysis
Question Analysis
This problem tests the understanding of the even property of the cosine function.
This problem tests the understanding of the even property of the cosine function.
Key Concept Explanation
The cosine function is even, which means for all in its domain. Therefore, if , then will also be .
The cosine function is even, which means for all in its domain. Therefore, if , then will also be .
Step-by-step Solution
1. Use the even property of the cosine function:
1. Use the even property of the cosine function:
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