The shortest distance between lines ba...

The shortest distance between lines
`barr=(lambda-1)hati+(lambda+1)hatj-(1+lambda)hatk` and
`barr=(1-mu)hati+(2mu-1)hatj+(mu+2)hatk` is

A

(a) `(sqrt(5))/(2)`

B

(b) `(5)/(sqrt(2))`

C

(c) `15`

D

(d) `5sqrt(2)`

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The correct Answer is:

B

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