If `a,b and c` be in `A.P.`.prove that `cosA cot(A/2),cosB cot(B/2), and cosC cot(C/2)` are in `A.P.`

If the sides a,b,c of a triangle ABC are in A.P., prove that cosA "cot" (A)/(2) , cosB "cot" (B)/(2), cosC "cot" (C)/(2) are also in A.P.

If the side lengths a,b and c are in A.P. prove that cot (A/2),cot (B/2),cot (C/2) are in A.P .

In DeltaABC , if a,b,c are in A.P. prove that: cot(A/2),cot(B/2), cot(C/2) are also in A.P.

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

In any Delta ABC , cot(A/2),cot(B/2),cot(C/2) are in A.P. , then

In any Delta ABC,cot((A)/(2)),cot((B)/(2)),cot((C)/(2)) are in A.P.

If a^(2),b^(2) and c^(2) be in A.P. prove that cot A,cot B and cot C are in A.P. also.

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

In any triangle ABC prove that cot(A/2)+cot(B/2)+cot(C/2)=cot(A/2)cot(B/2)cot(C/2)

In any triangle ABC prove that cot(A/2)+cot(B/2)+cot(C/2)=cot(A/2)cot(B/2)cot(C/2)