Find the unit vector in the direction of vector `veca=4hati+3hatj+hatk`.

Explanation

To find the unit vector in the direction of the vector \(\vec{a} = 4\hat{i} + 3\hat{j} + \hat{k}\), we will follow these steps:

### Step 1: Identify the vector
We have the vector:
\[ \vec{a} = 4\hat{i} + 3\hat{j} + \hat{k} \]

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