The lines x+3 -2 = y 1 = z-4 3 and x = y-1 +1 = z +2 are perpendicular to each other. Then is equal to

JEE Advanced Mathematics question

The lines and are perpendicular to each other. Then is equal to

Answer: (D)

The direction ratios are and . Two lines are perpendicular when :

-2λ+(λ+1)+3(λ+2)=0\

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Question ID VK-109835