Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The lines
= i – j + λ (2i + k) and
= (2i – j) + μ (i + j – k) intersect for
Text Solution
Verified by ExpertsThe correct answer is:
D
The given lines intersect, if the shortest distance between the lines is zero.
We know that the shortest distance between the lines
r = a 1 + ( λ
) and r = a 2 + λ b 2 is

So the shortest distance between the given lines is zero if
(i – j – (2i – j) . (2i + k) × (i + j – k) = 0
L.H.S. =
= 1 ≠ 0
Hence the given lines do not intersect.
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