[sin(S-A)sin(S-B)+sin(S-C)sin S],[=sin A sin B]

If A+B+C=2S , prove that: sin(S-A)+sin(S-B)+sin(S-C)-sinS = 4sinA/2sinB/2sinC/2

If A+B +C =2S, prove that : sin (S - A) + sin (S- B) + sin (S-C)-sinS= 4 sin frac (A)(2) sin frac (B)(2) sin frac (C)(2) .

If A + B + C = 2S, prove that sin (S- A) sin (S - B) +sin S sin (S-C) = sin A sin B

sin(B+C-A)+sin(C+A-B)+sin(A+B-C)=4sin A sin B sin C

In triangle ABC, prove that sin(B+C-A)+sin(C+A-B)+sin(A+B-C)=4sin A sin B sin C .

If A + B + C = 2s, then prove that sin (s - A) sin (s - B) + sin s. sin (s - C) = sin A sin B .

What is the value of sin(A+B)sin(A-B)+sin(B+C)sin(B-C)+sin(C+A)sin(C-A) ?

If A + B + C = 2S then sin (SA) + sin (SB) + sin (SC) -sin S =

If A+B+C = 2S , then prove that sin(S-A)+sin(S-B)+sinC = 4 cos ((S-A)/2) cos ((S-B)/2) sin C/2 .

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