3) IfA +B+C-180° ten sin A equalsa)Sin( B +C )b) - Sin( Bcc) cos( B+C – InterviewSolution

1.	3) IfA +B+C-180° ten sin A equalsa)Sin( B +C )b) - Sin( Bcc) cos( B+C)d)-cos B-c)
Answer» A+B+C = 180°A = 180° -(B+C)sin(A)sin(180° -(B+C))sin(B+C)(a) option is correct

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