Find the shortest distance between the lines whose vector equations are

We know that
Shortest distance between two lines
and
is
……….(i)
Here,
,
and
, ![]()
Now, ![]()
……….(ii)
Now, ![]()
⇒ 
……….(iii)
……….(iv)
Now, ![]()
……….(v)
Now, using (i), we have
The shortest distance between the two lines, 