Question

Do you have to put the absolute value bars when doing the ratio test? Or is that only when a series has an x in it?

Answer 1

Not quite sure.
@SyedMohammed98
@EclipsedStar

Answer 2

Ok

Answer 3

it actually depends on the context of the problem, but could you please provide an example as to what you mean?

Answer 4

For example if you have a series that is (3^(n-1)+1)/3^n. I tried the test on this and it came out inconclusive, but I still want to know. The series doesn't have any negative terms, so if I perform the ratio test on it, do I need the absolute value bars