" 18.In "Delta ABC" if a,b,c are in A.P,then find the value of "tan(A)/(2)tan(C)/(2)" ."

If a,b,c are in A.P., then the numerical value of tan(A/2) tan (C /2) is

In triangle ABC if a, b, c are in A.P., then the value of (sin.(A)/(2)sin.(C)/(2))/(sin.(B)/(2)) =

In triangle ABC if a, b, c are in A.P., then the value of (sin.(A)/(2)sin.(C)/(2))/(sin.(B)/(2)) =

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

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

If the sides a, b, c of a triangle are in A.P., then find the value of tan frac (A)(2)+ tan frac (C)(2) in terms of cot frac (B)(2) .

If a,b,c are in A.P. then tan ""( A)/(2) tan "" ( C) /(2) =

In /_ABC with usual notations,if a,b,c are in A.P.then the numerical value of tan((A)/(2))tan((B)/(2))+tan((B)/(2))tan((C)/(2)) is

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