The unit vector along $\hat i + \hat j$ is
The unit vector along $\hat i + \hat j$ is
- A
$\hat k$
- B
$\hat i + \hat j$
- C
$\frac{{\hat i + \hat j}}{{\sqrt 2 }}$
- D
$\frac{{\hat i + \hat j}}{2}$
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