imo class 12 three dimensional geometry

The line joining (1,2,3) and (3,6,9) has DRs proportional to:

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The line joining (1,2,3) and (3,6,9) has DRs proportional to:

  • A. (1,2,3)
  • B. (2,3,4)
  • C. (3,6,9)
  • D. (4,8,12)

Answer: A) (1,2,3)

Explanation: Differences are (2,4,6)=2(1,2,3).

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