The vector $\frac{1}{3} (2\hat{i} - 2\hat{j} + \hat{k})$ is ....
- Aa unit vector.
- Bmaking an angle of $\pi/3$ with the vector $2\hat{i} - 4\hat{j} + 3\hat{k}$.
- Cperpendicular to the vector $3\hat{i} - 2\hat{j} - \hat{k}$.
- Dnone of these.
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