SOLUTION: Vertify is an identity cos^2(2x)+4sin^2(x).cos^2(x)=1

SOLUTION: Vertify is an identity cos^2(2x)+4sin^2(x).cos^2(x)=1

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Question 401382: Vertify is an identity
cos^2(2x)+4sin^2(x).cos^2(x)=1

Answer by Tatiana_Stebko(1539) (Show Source): You can put this solution on YOUR website!

Use FORMULA

Use FORMULA , so

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