Question

prove the identities:- tanA/1+tanA2=sinA×CosA​

Answer 1

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Answer 2

tanA/1+tan^2A=sinA×cosA

(sinA/cosA) /1+(sin^2A/cos^2A)=sinA×cosA

(sinA/cosA)/(cos^2A+sin^2A/cos^2A)=sinA×cosA

sinA/cosA ×cos^2A/1 =sinA×cosA(sin^2A+cos^2=1

=sinA×cosA = sinA×cosA