The sides a, b, c of a triangle ABC are in arithmetic progression and 'a' is the smallest side. What is cos A equal to ?

The sides a, b, c of a DeltaABC are in AP and 'a' is the smallest side. What is cos A equal to?

If three sides a,b,c of a triangle ABC are in arithmetic progression, then the value of cot, A/2, cot, C/2 is (A) 1 (B) 2 (C) 3 (D) None of these

The altitudes of a triangle are in arithmetic progression, then the sides of a triangle are in

If the altitudes of a triangle are in arithmetic progression, then the sides of the triangle are in

If three sides a,b,c of a triangle ABC are in arithmetic progression, then the value of cot(A/2), cot(B/2), cot(C/2) are in

The angles A, B and C of a triangle ABC are in arithmetic progression. If 2b^(2)=3c^(2) then the angle A is :

The angles A, B and C of a triangle ABC are in arithmetic progression. If 2b^(2)=3c^(2) then the angle A is :

The side of a triangle are distinct integers in an arithmetic progression. If the smallest side is 10, the number of such triangles is-

In triangle ABC if a,b and c are in arithmetic progression then cos A + 2cosB + cosC=

If the sides of a triangle ABC are in AP and 'a' is the smallest side, then express cos A in term of b and c.