SOLUTION: please help me solve this identity 1-2cos^2 x=2sin^2 x-1

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Question 413602: please help me solve this identity 1-2cos^2 x=2sin^2 x-1
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

solving the identity 

1-2cos^2 x=2sin^2 x-1

1 = 2cos^2x+2sin^2x-1

1 = 2(cos^2x+sin^2x)-1

1 = 2(1)-1

1 = 1