Find unit vector in the direction of vector ` vec a=2 hat i+3 hat j+ hat k`.

Explanation

To find the unit vector in the direction of the vector \( \vec{a} = 2 \hat{i} + 3 \hat{j} + \hat{k} \), we will follow these steps:

### Step 1: Identify the vector
The given vector is:
\[ \vec{a} = 2 \hat{i} + 3 \hat{j} + 1 \hat{k} \]

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