Math, asked by palakdhiman05, 8 months ago

prove that sin2A / 1+cos2A = tanA

Answers

Answered by Hɾιтհιĸ

20

sin2A/1+cos2A

= (2sinAcosA)/(1+2cos^(2)A-1)

=(2sinAcosA)/ cos^(2)A

= 2sinA/cosA

=2tanA

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