If the lines 1-x 2 = 7y+4 2 = 2z-5 2 and 7-7x 3 = y-1 7 = 6-z 5 are at right angle, then the value of is

MHT CET 2025 Mathematics question

If the lines and are at right angle, then the value of is

Answer: (B)

First convert each line to symmetric form with unit coefficients of the variables. Line 1: , so its direction ratios are . Line 2: , so its

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Question ID VK-102864