SOLUTION: 2cos^2 2pi/3-1 double angle formula

SOLUTION: 2cos^2 2pi/3-1 double angle formula

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Question 768229: 2cos^2 2pi/3-1 double angle formula
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
2cos^2 2pi/3-1 double angle formula
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