Find the value of \lambda, so that the lines ...

CBSE Class 12 Math 2019 Delhi Set 1 Solved Paper

Question : 23 of 29

Marks: +1, -0

Find the value of

λ

, so that the lines

\;{1-x}/{3}=\;{7 y-14}/{λ}=\;{z-3}/{2}

and

\;{7-7 x}/{3 λ}=\;{y-5}/{1}=\;{6-z}/{5}

are at right angles. Also, find whether the lines are intersecting or not.

Solution:

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