JEE Advanced 2013 Mathematics question
A line l passing through the origin is perpendicular to the lines , , Then, the coordinate(s) of the point(s) on at a distance of from the point of intersection of l and is (are)
Answer: (B),(D)
Solution
Direction of l: . Intersection of l with : . From the first and third components , giving (2, −3, 2) (with λ = −1, consistent with the
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