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CBSE Class 12 Mathematics 2026 Main Paper 65/3/1 · Q171 Marksparallel_lines

CBSE Class 12 Mathematics 2026 Main Paper 65/3/1 · Question 17 (Three Dimensional Geometry)

For lines with direction ratios (12,−3,9) and (4,q,−p), find (p,q) that makes them parallel.

✅ Step-by-Step Solution

Final Answer: (−3,−1)
  1. The second triple must be one third of the first, so q=−1 and −p=3.

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