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CBSE Class 12 Mathematics 2026 Supplementary Paper 65(B)/7 · Q111 Marksparallel_lines

CBSE Class 12 Mathematics 2026 Supplementary Paper 65(B)/7 · Question 11 (Three Dimensional Geometry)

Find λ if (1−x)/(−3)=(2y−2)/8=(z+6)/5 is parallel to the line with direction (−6,λ,−10).

✅ Step-by-Step Solution

Final Answer: −8
  1. The first line has direction (3,4,5). The second must be −2 times it, giving λ=−8.

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All Questions in CBSE Class 12 Mathematics 2026 Supplementary Paper 65(B)/7

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