JEE Main 2026 Mathematics question
Let the foot of perpendicular from the point (λ, 2, 3) on the line be the point (1, μ, 2). Then the distance between the lines and is equal to:
Answer: (C)
Solution
The foot (4+t, 9+2t, 5+t)=(1, μ, 2) gives t=−3, μ=3. Perpendicularity (λ−1, −1, 1)·(1,2,1)=0 gives λ=2. The two lines are
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