The lines r = ( i + j - k ) + (3 i - j ) and r = (4 i - k ) + (2 i + 3 k ) are

MHT CET 2025 Mathematics question

The lines and are

(A)intersecting but not perpendicularCorrect
(B)perpendicular
(C)parallel
(D)skew lines

Answer: (A)

Solution

Directions and . They are not proportional, so the lines are not parallel. , so they are not perpendicular. For intersection/skewness compute with and $

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Question ID VK-102735