If the sides `a , ba n dCof A B C` are in `AdotPdot,` prove that `2sinA/2sinC/2=sinB/2` `acos^2C/2+cos^2A/2=(3b)/2`

If the sides a , b and c of A B C are in AdotPdot, prove that 2sinA/2sinC/2=sinB/2

If the sides a , b and c of A B C are in AdotPdot, prove that 2sinA/2sinC/2=sinB/2

If the sides a , b and c of A B C are in AdotPdot, prove that 2sin(A/2)sin(C/2)=sin(B/2)

If the sides a , b and c of ABC are in AP dotPdot, prove that 2sinA/2sinC/2=sinB/2 acos^2C/2+cos^2A/2=(3b)/2

If the sides a , b and c of ABC are in AdotPdot, prove that acos^2(C/2)+c cos^2(A/2)=(3b)/2

Prove that sinB/sinA=sin(2A+B)/sinA-2cos(A+B)

If sides a , b , c of the triangle A B C are in AdotPdot , then prove that sin^2A/2cos e c\ 2A ;sin^2B/2cos e c\ 2B\ ;sin^2C/2cos e c\ 2C are in H.P.

In DeltaABC , prove that: sinA+sinB-sinC=4sinA/2sinB/2cosC/2

In DeltaABC , prove that: sinA+sinB-sinC=4sinA/2sinB/2cosC/2