ln a Delta ABC," if "cos A+cos C+4sin^(2)((B)/(2))," then "a,b,c" are in "

In a Delta ABC, if cos A+cos C=4 sin^(2)((B)/(2)), then a,b,c are in

In a Delta ABC, if cos A+cos C=4 sin^(2)((B)/(2)), then a,b,c are in

In a Delta ABC, if cos A+cos B=4 sin^(2)((C)/(2)), then a,b,c are in (a) AP (b) GP (c) HP (d) None of these

In Delta ABC if cos A+cos C=4sin^(2)((B)/(2)) then a,b,c will be in

In Delta ABC, cos""(A)/(2) + sin""((B-C)/(2))=

In Delta ABC, if cos A cos B+ sin A sin B sin C=1 , then a:b:c =

In a Delta ABC, if 4cos A cos B+sin2A+sin2B+sin2C=4 then triangle ABC is

In Delta ABC , sin"(A)/(2) + cos""((B-C)/(2))=