Asked by Joel
Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2
Answers
Answered by
bobpursley
You need to clarify:
is sin2a sin^2(A) or sin(2A)?
is cosC/2= cos(C/2) or 1/2 Cos C?
is sin2a sin^2(A) or sin(2A)?
is cosC/2= cos(C/2) or 1/2 Cos C?
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