Question

if nth term of an AP is an+b then find its common difference is​

Answer 1

Step-by-step explanation:

On putting n=1

we get, first term of ap as

a×1+b

a+b

n=2

so, second term of ap is

a×2+b

2a+b

d=second term - first term

d=2a+b-(a+b)

d=2a+b-a-b

d=a