SOLUTION: Solve cos2x=tan2x
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Question 792585: Solve cos2x=tan2x
Answer by harpazo(655) (Show Source): You can put this solution on YOUR website!
Hint:
cos(2x) = cos^2(x) - sin^2(x)
tan(2x) = 2 tan(x) / (1 - tan^2(x))
tanx = sinx/cosx
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