SOLUTION: use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1

SOLUTION: use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1

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Question 870251: use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
use an angle sum identity to verify the identity cos 2 theta = 2 cos^2 theta -1

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