# Is the following sequence is arithmetic: 2, -2, 2, -2, 2,… ?

##### 1 Answer

Aug 10, 2015

The common difference between a pair of terms is not equal, so it can be concluded that the sequence is not an arithmetic sequence.

#### Explanation:

The sequence provided is

In an arithmetic sequence there is a common difference

The common difference between the pair of terms is not equal

Hence it can be concluded that the sequence is not an arithmetic sequence.

It does, however, have a common ratio between successive terms, namely