SOLUTION: What is the vlaue of 4cos75 ° cos15 °?

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Question 1038822: What is the vlaue of 4cos75 ° cos15 °?
Answer by Alan3354(69443) About Me  (Show Source):
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What is the vlaue of 4cos75 ° cos15 °?
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= 4sin(15)*cos(15)
= 2sin(30)
= 1