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trig identity question dixie43 12/03/06
    sin2x - cos2x - tan2x = (2sin2x -2sin4x - 1) / 1 -sin2x Prove the identity.

Summary of Answers Received Answered On Answered By Average Rating
1. sin^2(x)-[1-sin^2(x)]-sin^2(x)/cos^2(x) = 2sin^2(x) -1 -sin...
 12/03/06 raridonNo rating received!
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