Question

Is this an arithmetic, geometric, both, or neither series? (pic of series in comments)

Answer 1

also Identify the following series as arithmetic, geometric, both, or neither.

-3 + 3 - 3 + 3 - 3 + . .

Answer 2

The math.jpg series is clearly not geometric, as the terms do not increase multiplicatively. since the terms do not increase by a constant amount, it appears not to be arithmetic, either.