Find the shortest distance between the following set of parallel lines – McqOptions

MCQOPTIONS

1.	Find the shortest distance between the following set of parallel lines. ( vec{r}=6 hat{i}+2 hat{j}- hat{k}+ ( hat{i}+2 hat{j}-4 hat{k}) )
A.	n ( vec{r}= hat{i}+ hat{j}+ hat{k}+ ( hat{i}+2 hat{j}-4 hat{k}) )
B.	d= ( sqrt{ frac{324}{45}} )
C.	d= ( sqrt{ frac{405}{21}} )
D.	d= ( sqrt{ frac{24}{21}} )
E.	d= ( sqrt{ frac{21}{567}} )
Answer» C. d= ( sqrt{ frac{405}{21}} )

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