[" In "Delta ABC," if "A,B,C" are in "AP," then "],[(a+c)/(sqrt(a^(2)-ac+c^(2)))=]

In Delta ABC , if A,B , C are in A.P. The (a+c)/( sqrt(a^(2) -ac + c^(2))

In Delta ABC if the angle A,B,C are in A.P.then (a+c)/(sqrt(a^(2)-ac+c^(2)))=

In Delta ABC , if A,B,C are in A.P then (a+c)/sqrt(a^2-ac+c^2)=

In a Delta ABC ,if angle, A,B,C are in A.P then (a+c)/(sqrt(a^(2)-ac+c^(2) 1.cos((A-C)/(2)) 2. 2cos((A-C)/(2)) 3. 2sin((A-C) 4. 2cos(A+C)

If in Delta ABC , sides a, b, c are in A.P. then

In Delta ABC, if A+C=2B, prove that 2cos((A-C)/(2))=(a+c)/(sqrt(a^(2)-ac+c^(2)))

In triangle ABC, if A+C=2B , then (a+c)/(sqrt(a^(2)-ac+c^(2))) is equal to

In triangle ABC, if A+C=2B , then (a+c)/(sqrt(a^(2)-ac+c^(2))) is equal to

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