The lenstli of the shortest distance between the lines $\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}$ and $\frac{x-2}{3}=\frac{y-4}{4}=\frac{z-5}{5}$ is :

The lenstli of the shortest distance between the lines $\frac{x-1}{2}=\frac{y-2}{3}=\frac{z-3}{4}$ and $\frac{x-2}{3}=\frac{y-4}{4}=\frac{z-5}{5}$ is :
1). $\frac{2}{3\sqrt{6}}$
2). $\frac{1}{\sqrt{6}}$
3). $3\sqrt{30}$
4). 1$3\sqrt{66}$

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