Question

If a, b, c are in AP then b-a/c-b is ________​

Answer 1

Answer:

b-a=c-b is in form of a2-a1=a3-a2 this gives common difference.

so the answer is 1

Answer 2

b-a = d (let)

c-b = d

a,b,c in AP

b-a/c-b = d/d = 1

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