Asked by Rachel
How do you proove the identity
tanxsin2x = 2-2cos^2x
tanxsin2x = 2-2cos^2x
Answers
Answered by
bobpursley
tanx sin2x=2sinxcosx(sinx/cosx)=
2sin^2 x= 2*(1-cos^2 x)
2sin^2 x= 2*(1-cos^2 x)
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