Prove that (tanx)(sin2x) = 2 – 2cos^2

Cem Hayes 2021-01-27 Answered
Prove that
(tanx)(sin2x)=22cos2
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Expert Answer

Cullen
Answered 2021-01-28 Author has 89 answers
LHS=(tanx)(sin2x)
=(sinxcosx)(2sinx.cosx)
=2sin2x=2(1cos2x)
=22cos2x=RHS
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