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सदिश बीजगणित — गणित कक्षा 12 साइन्स — Question

Bihar BoardHindi Mediumकक्षा 12 साइन्सगणितसदिश बीजगणित1 Mark
MCQ
$\vec{i}-2 \vec{j}+\vec{k}$ पर सदिश $2 \vec{i}-\vec{j}+\vec{k}$ का प्रक्षेप है
  • A
    $\frac{4}{\sqrt{6}}$
  • ✓
    $\frac{5}{\sqrt{6}}$
  • C
    $\frac{4}{\sqrt{3}}$
  • D
    $\frac{7}{\sqrt{6}}$
✓

Answer

Correct option: B.
$\frac{5}{\sqrt{6}}$
B

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