Find the distance between the points `Aa n dB` with position vectors ` hat i- hat j and 2 hat i+ hat j+2 hat kdot`

Explanation

To find the distance between the points A and B with given position vectors, we will follow these steps:

1. **Identify the Position Vectors**:
- The position vector of point A is given as \( \vec{A} = \hat{i} - \hat{j} \).
- The position vector of point B is given as \( \vec{B} = 2\hat{i} + \hat{j} + 2\hat{k} \).

2. **Calculate the A-B Vector**:
- The vector \( \vec{AB} \) can be calculated using the formula:
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