Question

if a, b, c are in A. P then (a-b) /(b-c)​

Answer 1

Answer:

-1

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

If a,b,c are in A.P. then   b-a = c-b  --------------(1)

Therefore, (a-b) / (b-c)

                = -(b-a) / -(c-b)

                =1 (ANSWER)