[" If "cot A,cot B" ,cotc are in "AP],[" then "cot(B-A),cot B,cot CB-C" are in "]

cot A+cot B+cot C

If cot A,cot B,cot C are in A.P.then prove that cot(B-A),cot B,cot(B-C) are also in A.P.where A,B,C are any angles.

If a, b, c are in A.P then cot(A/2),cot(B/2),cot(C/2) are in

a cot A+b cot B+c cot C=

In a triangle A B C, if cot A, cot B, cot C are in A.P, then a^(2), b^(2), c^(2) are in

In triangle ABC , if cot A , cot B , cot C are in A.P., then a^(2), b^(2) , c^(2) are in …………

If a,b,c are in A.P then cot((A)/(2)),cot((B)/(2)),cot((C)/(2)) are in

Cot A +Cot B +cot C =