Observe the following pattern `1+3=2^2`
`1+3+5=3^2`
`1+3+5+7=4^2`
and write the value of `1+3+5+7+9+` upto n terms.

Explanation

To solve the problem, we need to find the value of the sum of the first n odd natural numbers, which is represented as:

\[ 1 + 3 + 5 + 7 + 9 + \ldots \text{ (up to n terms)} \]

### Step-by-Step Solution:

1. **Identify the Pattern**:
- The given sums are:
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