Write the set `{x : x i s a pos i t i v e integer a n d x^2< 40}`in the roster form.

Explanation

To write the set \(\{x : x \text{ is a positive integer and } x^2 < 40\}\) in roster form, we will follow these steps:

### Step 1: Understand the condition
We need to find positive integers \(x\) such that \(x^2 < 40\).

### Step 2: Determine the upper limit for \(x\)
To find the largest positive integer \(x\) that satisfies \(x^2 < 40\), we can take the square root of 40:
\[
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