Find the projection of `veca=2hati-hatj+hatk and vecb=hati-2hatj+hatk.`

Explanation

To find the projection of vector **A** onto vector **B**, we can use the formula:

\[ \text{Projection of } \vec{A} \text{ on } \vec{B} = \frac{\vec{A} \cdot \vec{B}}{|\vec{B}|^2} \vec{B} \]

Where:
- \(\vec{A} = 2\hat{i} - \hat{j} + \hat{k}\)
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