SOLUTION: Use the half angle formulas to find exact value: SIN 210 degrees COS 60 degrees

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Question 923217: Use the half angle formulas to find exact value:
SIN 210 degrees
COS 60 degrees
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Use the half angle formulas to find exact value:
SIN 210 degrees
COS 60 degrees
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sin%28x%2F2%29=sqrt%28%281-cosx%29%2F2%29

..
cos%28x%2F2%29=sqrt%28%281%2Bcosx%29%2F2%29