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STD 12 - 11. three dimension geometry — Mathematics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceMathematicsSTD 12 - 11. three dimension geometry1 Mark
MCQ
If the straight lines $\vec r=$$(1,2,3)+k(\lambda ,2,3),k \in R$  and $\vec r=$$(2,3,1) +k(3,\lambda ,2),k \in R$ intersect at a point , then the interger $\;\lambda $ is equal to . 
  • ✓
    $-5$
  • B
    $5$
  • C
    $2$
  • D
    $-2$
✓

Answer

Correct option: A.
$-5$
a

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