Question

Is the following sequence an A.P. ? If yes, then find the common difference.
$2,4,6,8,...$

Answer 1

Given that $2,4,6,8,...\dots$ is AP

Here $a_1$ = 2

$a_2=4$

Common difference $d=a_2-a_1$

$=4-2$

$=2$

$\therefore$ The given sequence is in AP and common difference is $2$.