SOLUTION: Suppose x= 7pi/12. Use half-angle identity to find the exact value of cosx.

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Question 928612: Suppose x= 7pi/12. Use half-angle identity to find the exact value of cosx.
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose x= 7pi/12. Use half-angle identity to find the exact value of cosx.
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