Question

Is the given progression arithmetic progression?
$-1,-3,-5,-7,.........$

Answer 1

Given sequence

$-1,-3,-5,-7$….

Difference between consecutive numbers/terms in a sequence must be same to be an AP

Here $=-3+1=-2$

$-5+3=-2$

$-7+5=-2$

It is same equal to $-2$ (common difference)

It is an AP.