MCQ
सदिश $2 \overrightarrow{\mathrm{i}}-7 \overrightarrow{\mathrm{j}}-3 \overrightarrow{\mathrm{k}}$ का मापांक है :
- A$\sqrt{61}$
- ✓$\sqrt{62}$
- C$\sqrt{64}$
- D$\sqrt{32}$
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