Question

Consider the following AP
sequence:1, a, b, c, 9. Find the
common difference.​

Answer 1

Answer:

Ap:1,a,b,c,9

let us take the 5th term

An=A+(n-1)×d

A5=A + 4×d

9=1+4d

9-1=4d

4d=8

d=2

Therefore the common difference is 2.

The Ap is 1,3,5,7,9.

hope it helps!!

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