If `a, b, c` are sides of `Delta ABC` are in A.P. then

If sides a,b,c of Delta ABC are in A.P., then : sin (A/2) cdot sin (C/2)/(sin (B/2) =

If the angles of a triangle ABC are in A.P. then

If the angle A,B,C of a Delta ABC are in A.P then :-

If the angles of a triangle ABC are in A.P. , then

If the anngle A,B,C of a Delta ABC are in A.P then :-

If the sides a,b and c of a ABC are in A.P.,then (tan(A/2)+tan(C/2)):cot(B/2) , is

If the angles A,B,C of Delta ABC are in A.P. And its sides a,b,c are in G.P., then a^(2), b^(2), c^(2) are in

The sides a,b,c of Delta ABC are in G.P. , where log a - log 2b, log 2b -log 3c, log 3c - log a , are in A.P., then Delta ABC is :