In `Delta ABC`, if a,b,c are in A.P, then `tan""A/2 tan""C/2`=

In in a triangle ABC , sides a,b,c are in A.P. then tan""A/2 tan""C/2

In in a triangle ABC , sides a,b,c are in A.P. then tan""A/2 tan""C/2

In any triangle ABC, if a,b,c are in A.P. then tan ""A/2, tan ""B/2, tan ""C/2 are in -

In Delta ABC, if a,b,c are in A.P.then (tan A)/(2),(tan B)/(2),(tan C)/(2) are in

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

If in a Delta ABC, a, b, c are in A.P . Then cos ((A- C)/( 2)) is equal to

In Delta ABC, if tan ""(A)/(2), tan""(B)/(2) , tan""(C)/(2) are in A.P. then cos A , cos B , cos C are in

In Delta ABC , if tan A, tan B, tan C are in H.P., then a^2,b^2,c^2 are in