Algebra-1

Question Analysis
This question involves identifying a non-arithmetic sequence with an increasing trend but varying differences. The main focus is on detecting that the differences between consecutive terms are not constant.

Key Concept Explanation
A sequence is not arithmetic if the differences between consecutive terms are not the same. Even if the sequence is increasing, it is not arithmetic unless the increase is by a constant amount each time.

Step-by-Step Solution
Calculate the differences between consecutive terms: