Justify whether it is true to say that the following are the nth terms of an AP.
(i) `2n-3 " " ` (ii) `3n^(2)+5 " " ` (iii) `1+n+n^(2)`

Explanation

To determine whether the given expressions are the nth terms of an Arithmetic Progression (AP), we need to check if the difference between consecutive terms is constant.

### Step-by-Step Solution:

**(i) Expression: \(2n - 3\)**

1. **Calculate the first few terms:**
- For \(n = 0\): \(2(0) - 3 = -3\)
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