In any `DeltaABC,` prove that `(sinA)/a=(sinB)/b=(sinC)/c` by vecter method.

In any Delta ABC, prove that (sin A)/(a)=(sin B)/(b)=(sin C)/(c) by vecter method.

In any DeltaABC , prove that (sinA)/(sin(A+B))=a/c

In any DeltaABC , prove that, (sinB)/(sinC)=(c-acosB)/(b-acosC) .

In any DeltaABC , prove that: (sinB)/(sinC)=(c-acosB)/(b-acosC)

In DeltaABC , prove that: sinB+sinC gt sinA

In DeltaABC , prove that: sinB+sinC gt sinA

In any DeltaABC , prove that a(sinB-sinC)+b(sinC-sinA)+c(sinA-sinB)=0

In any DeltaABC , prove that Sigma (sqrt(sinA))/(sqrt(sinB)+sqrt(sinC)-sqrt(sinA)) ge 3 and the equality holds if and only if triangle is equilateral.

In any DeltaABC , prove that Sigma (sqrt(sinA))/(sqrt(sinB)+sqrt(sinC)-sqrt(sinA)) ge 3 and the equality holds if and only if triangle is equilateral.