MCQ
यदि $\vec{a}=\vec{i}-\vec{j}+\vec{k}$ और $\vec{b}=2 \vec{i}+\vec{j}-\vec{k}$ तब $|2 \vec{a}-\vec{b}|=$
- A6
- B$\sqrt{2}$
- ✓$3 \sqrt{2}$
- D18
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