MCQ
$\vec{a} \times(\vec{b}+\vec{c})+\vec{b} \times(\vec{c}+\vec{a})+\vec{c} \times(\vec{a}+\vec{b})$ का मान है
- A$2 \vec{a}$
- ✓$\overrightarrow{0}$
- C$3 \vec{b}$
- D$4 \vec{b}$
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