Math, asked by ajju78, 1 year ago

sin2a/1+cos2a find the value

Answers

Answered by Anonymous

4

hiiii... ..

*sin2A= 2sincosA

* cos2A= 2cos^2A-1

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

= 2sinAcosA/2cos^2A

= 2sinA/2cosA

= tanA

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