SOLUTION: Use the information given about angle theta to find the exact value of cosine theta/2
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Question 516628: Use the information given about angle theta to find the exact value of cosine theta/2
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
So are we just supposed to guess what "the information given about the angle 
" might be? C'mon, use your head for something besides a hat rack.
John
My calculator said it, I believe it, that settles it
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