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
    $\sqrt{32}$

Answer

Correct option: B.
$\sqrt{62}$
(B)

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