If the angle between unit vectors `veca and vecb is 60^(@)` . Then find the value of `|veca -vecb|`.

Explanation

To solve the problem of finding the magnitude of the difference between two unit vectors \( \vec{a} \) and \( \vec{b} \) when the angle between them is \( 60^\circ \), we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Given Information**:
We know that \( \vec{a} \) and \( \vec{b} \) are unit vectors, and the angle \( \theta \) between them is \( 60^\circ \).

2. **Use the Formula for Magnitude of the Difference of Vectors**:
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