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Find the shortest distance between the lines `vecr=(hatii+2hatj+hatk)+lamda(2hati+hatj=2hatk) and vecr=2hati-hatj-hatk+mu(2hati+hatj+2hatk)`.

A

`3/sqrt(2)`

B

`2/sqrt(3)`

C

`1/(3sqrt(2))`

D

`1/(2sqrt(3))`

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The correct Answer is:
A
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