SOLUTION: Vertify is an identity Sin2x=2cotx(sin^2x)

Question 400534: Vertify is an identity
Sin2x=2cotx(sin^2x)
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Vertify is an identity
Sin2x=2cotx(sin^2x)
starting from the right-hand side
2cotx(sin^2x)
=2(cosx/sinx)(sin^2x)
=2(cosx/sinx)(sin^2x)
=2sinxcosx=sin2x
ans:right-hand side=left-hand side

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