A line whose direction cosines are proportional to 2,1,2, meets with t – InterviewSolution

1.	A line whose direction cosines are proportional to 2,1,2, meets with the lines x=y+a=z and x+a=2y=2z at A and B respectively. If the distance between A and B is d, then 12d\|a\| is
Answer» A line whose direction cosines are proportional to $2, 1, 2$ , meets with the lines $x = y + a = z$ and $x + a = 2 y = 2 z$ at $A$ and $B$ respectively. If the distance between $A$ and $B$ is $d$ , then $\frac{12 d}{\| a \|}$ is

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