MCQ
सदिश $\hat{i}-\hat{j}$ पर सदिश $\hat{i}+\hat{j}$ का प्रक्षेप है
- ✓$0$
- B$\frac{1}{\sqrt{2}}$
- C$\frac{2}{\sqrt{3}}$
- D$\frac{1}{\sqrt{3}}$
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