If the lines 2x=ky=-z and 6x=-y=-4z are perpendicular to each other then the value of k is...

MHT CET 2026 Mathematics question

If the lines and are perpendicular to each other then the value of k is...

Answer: (D)

Write each line in symmetric form. First line: gives , , , so direction ratios (multiply by ). Second line: gives , , \frac$

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Question ID VK-099133