Prove that (tanx)(sin2x) = 2 – 2cos^2

Cem Hayes

Cem Hayes

Answered question

2021-01-27

Prove that
(tanx)(sin2x)=22cos2

Answer & Explanation

Cullen

Cullen

Skilled2021-01-28Added 89 answers

LHS=(tanx)(sin2x)
=(sinxcosx)(2sinx.cosx)
=2sin2x=2(1cos2x)
=22cos2x=RHS

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