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सदिश बीजगणित — गणित कक्षा 12 साइन्स — Question

CBSE Boardहिन्दी माध्यमकक्षा 12 साइन्सगणितसदिश बीजगणित1 Mark
MCQ
$(2 \vec{i}+3 \vec{k})[(\vec{i}+\vec{j}+4 \vec{k}) \times(3 \vec{i}+\vec{j}+7 \vec{k})]=$
  • ✓
    $0$
  • B
    112
  • C
    126
  • D
    192
✓

Answer

Correct option: A.
$0$
A

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