Question

Check whether the following numbers are in A.P or not.
$2,4,8,16,\dots$

Answer 1

Given Series, $2,4,8,\mathrm{16...}$

The numbers are said to be in AP if the difference between any two consecutive terms is constant.

Here,

$4-2=2$

$8-4=4$

$16-8=8$

Hence, this is not in AP as the common difference is not constant.