[" (a) "sin A.sin(B-C)+sin B.sin(C-A)+sin C],[qquad sin(A-B)=0]

show that sin A*sin(B-C)+sin B*sin(C-A)+sin C*sin(A-B)=0

Show that: sin A sin(B-C)+sin B sin(C-A)+sin C sin(A-B)=0

In a DeltaABC , prove that : sin3A sin(B-C)+sin3B sin(C-A) + sin3C sin (A-B)=0 .

Prove that: ("sin"(A-B))/(sin A sin B)+("sin"(B-C))/(sin B sin C)+("sin"(C-A))/(sin C sin A)=0

Prove that (sin (A - B))/( sin A sin B ) + ( sin (B -C))/( sin B sin C ) + (sin (C - A))/( sin C sin A) =0

a sin A-b sin B=c sin(A-B)

a sin A-b sin B=c sin(A-B)

a sin A-b sin B=c sin(A-B)

19.Prove that sin (A + B) sin (AB) + sin (B + C) sin (BC) + sin (C + A) sin (CA) = 0

In any triangle A B C , prove that following: \ \ asin(A/2)sin((B-C)/2)+bsin(B/2)sin((C-A)/2)+c sin(C/2)sin((A-B)/2)=0.