If the lines x1= y2= z3, x-1 3 = y-2 -1 = z-3 4 and x+k 3 = y-1 2 = z-2 h are concurrent then

JEE Advanced Mathematics question

If the lines , and are concurrent then

Answer: (D)

General points on the first two lines are and . Equating them:

r=1+3r', 2r=2-r', 3r=3+4r'\ ⇒\ r=1,\ r'=0 .

So the first

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Question ID VK-109849