Math, asked by bincybinukumar, 9 months ago

prove that (1+cosA)(1-cosA)=sin^2A

Answers

Answered by Gayathriavunoori

0

solving LHS,

(1+cosA)(1-cosA) = 1 - cos^2A

= sin^2A

{as sin^2A + cos^2A =1 }

This is your required proof

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