Question

How do you tell whether the sequence `3/4, 7/8, 1, 9/8, 5/4` is arithmetic?

Answer 1

Please see below.

Explanation:

In an arithmetic sequence difference between a term and its immediately preceding term is always same.

Here `7/8-3/4=1-7/8=9/8-1=5/4-9/8=color(red)(1/4)`

As the difference is always same i.e. `1/4`

It is an arithmetic sequence.