InDelta ABCProve that sin ^(2) "" (A)/(2) + sin ^(2)""(B) /(2) + sin ^ – InterviewSolution

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1.	InDelta ABCProve that sin ^(2) "" (A)/(2) + sin ^(2)""(B) /(2) + sin ^(2) ""( C) /(2) =1 -( r) / ( 2R)
Answer» ` 2 + ( R )/( R ) ` ` ( r )/( 2R ) ` ` 1 + ( r ) /( 2 R) ` ` 1- ( r ) /( 2 R) ` ANSWER :D

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