In any `DeltaABC`, prove that : `(a^2 sin (B-C))/(sin A) + (b^2 sin (C-A))/(sin B) + (c^2 sin (A-B))/(sin C) = 0`

In Delta ABC, prove that (a^(2)sin (B-C))/(sin A) + (b^(2) sin (C-A))/(sin B) + (c^(2) sin (A-B))/(sin C) = 0

In DeltaABC , prove that: (a^(2)sin(B-C))/(sinA) + (b^(2)sin(C-A))/(sinB)+(c^(2)sin(A-B))/(sinC)=0

In any Delta ABC, prove that :(a^(2)sin(B-C))/(sin B+sin C)+(b^(2)sin(C-A))/(sin C+sin A)+(c^(2)sin(A-B))/(sin A+sin B)=0

In any triangle ABC, prove that following: (a^(2)sin(B-C))/(s in A)+(b^(2)sin(C-A))/(s in B)+(c^(2)sin(A-B))/(s in C)=0

In any triangle ABC, prove that: (a^(2)sin(B-C))/(sin B+sin C)+(b^(2)sin(C-A))/(sin C+sin A)+(c^(2)sin(A-B))/(sin A+sin B)=0

Prove that (a^(2)sin(B-C))/(sin b+sin C)+(b^(2)sin(C-A))/(sin C+sin A)+(c^(2)sin(A-B))/(sin A+sin B)=0

In DeltaABC , prove that: sin(B-C)/(2)=(b-c)/(a).cosA/2

In any Delta ABC, prove that :(b^(2)-c^(2))/(a^(2))=(sin(B-C))/(sin(B+C))

In any DeltaABC , prove that ("sin(A-B)")/("sin(A+B)")=((a^(2)-b^(2)))/c^(2)

In any triangle ABC, prove that: (sin(B-C))/(sin(B+C))=(b^(2)-c^(2))/(a^(2))