In `DeltaABC`, prove that:
`(a^(2)sin(B-C))/(sinA) + (b^(2)sin(C-A))/(sinB)+(c^(2)sin(A-B))/(sinC)=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 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 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: (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 any DeltaABC , find the value of (a^(2)sin(B-C))/(sinB+sinC)+(b^(2)sin(C-A))/(sinC+sinA)+(c^(2)sin(A-B))/(sinA+sinB)

In any DeltaABC , prove that a^(2)sin(B-C)=(b^(2)-c^(2))sinA

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

sin(B-C)/(sinB*sinC)+sin(C-A)/(sinC*sinA)+(sin(A-B))/(sin A*sin B)=0

In DeltaABC , prove that: (a-b)/c=(sin(A-B)/(2))/(cosC/2)