Is the following a geometric sequence 1, 5, -25, 125,…?

1 Answer
Eivind K.
Nov 8, 2015

No

Explanation:

In a geometric sequence, you have to multiply (or divide) with a constant number.

If the sequence was -1, 5, -25, 125..., it would have been a geometric sequence, because you are always multiplying by (-5).

In the sequence ( 1, 5, -25, 125), you start by multiplying by 5, followed by multiplying with (-5)

Related questions
See all questions in Geometric Sequences
Impact of this question
17930 views around the world
You can reuse this answer
Creative Commons License