
Arturo O. answered 04/10/20
Experienced Physics Teacher for Physics Tutoring
There is a common ratio of 1/4=0.25, so it is a geometric series.

Arturo O.
If there is a common ratio, it is a geometric series. If there is a common difference, it is an arithmetic series. If there is no common ratio and no common difference, it is neither.04/10/20
Gabrielle W.
Oh okay. Now how would I know if it’s arithmetic or neither?04/10/20