MCQ
बिदुओं $(\mathrm{a}, \mathrm{b})$ और $(-\mathrm{a},-\mathrm{b})$ के बीच क्या दूरी है ?
- A$\sqrt{a^{2}+b^{2}}$
- ✓$2 \sqrt{a^{2}+b^{2}}$
- C$\sqrt{2\left(a^{2}+b^{2}\right)}$
- D1
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