In any `DeltaABC`, prove that
`asin(A/2+B)=(b+c)sin""A/2`

i) In DeltaABC , prove that: (b-a)/(b+a)=tanC/2. tan(B-A)/(2) ii) In DeltaABC , prove that: asin(A/2+B) = (b+c)sinA/2

In any DeltaABC , prove that asin""1/2(B-C)=(b-c)cos""1/2A

In any DeltaABC , prove that acos""((B-C)/2)=(b+c)sin""(A/2) .

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

In any DeltaABC , prove that : tan (A/2 + B) = (c+b)/(c-b) tan (A/2)

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

In any DeltaABC , prove that asin(B-C)+bsin(C-A)+csin(A-B)=0

In any DeltaABC , prove that b^(2)sin2C+c^(2)sin2B=2bcsinA=4Delta .

In any DeltaABC , prove that (sin B)/(sin(B+C) ) = b/a

In any DeltaABC prove that, a^(3)sin(B-C)+b^(3)sin(C-A)+c^(3)sin(A-B)=0 .