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

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Question 627976: Use an angle sum identity to verify the identity
cos^2 theta = 2 cos^2 theta - 1
Answer by Alan3354(69443) About Me  (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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cos^2 theta + 1 = 2 cos^2 theta
1 = cos^2(theta)
Not an identity.