MCQ
The distance between the points (a, b) and (−a, −b) is
- A$\sqrt{a^2+b^2}$
- B$a^2+b^2$
- ✓$2 \sqrt{a^2+b^2}$
- D$4 \sqrt{a^2+b^2}$
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| Marks | Number of students |
| 0-10 | 6 |
| 10-20 | 10 |
| 20-30 | 12 |
| 30-40 | 32 |
| 40-50 | 20 |