- #1

Char. Limit

Gold Member

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## Homework Statement

So I was helping my roommate with his homework, and it has the following problem:

Fill in the blanks so that

___, 8, ___, ___, 27, ___, ...

is

a.an arithmetic sequence.

b.a geometric sequence.

c.a sequence that is neither arithmetic nor geometric, for which you are able to write a general term.

## Homework Equations

## The Attempt at a Solution

We tried a Fibonnaci-type sequence, but that really didn't work. And we don't know any other types of sequences. Should I try some sort of quadratic relationship?