SOLUTION: I'm stumped on this question. Thanks for the help.
Verify the identity:(cos3x-cosx)/(sin3x-sinx)=-tanx
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Question 953816: I'm stumped on this question. Thanks for the help.
Verify the identity:(cos3x-cosx)/(sin3x-sinx)=-tanx
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Is it cos(3x) ?
or cos^3(x) ?
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