The shortest distance between the line `(x-1)/(2)=(y+1)/(3)=(z)/(1)` and the line `(x+1)/(1)=(y+4)/(1)=(z+1)/(1)` is

Equation of the line of the shortest distance between the lines (x)/(1)=(y)/(-1)=(z)/(1) and (x-1)/(0)=(y+1)/(-2)=(z)/(1) is:

If the shortest distance between the lines (x-1)/(1)=(y-1)/(1)=(z-1)/(1) and (x-2)/(1)=(y-3)/(1)=(z-4)/(1) is equal to sqrt(K) unit, then the value of K is -

Find the shortest distance between the lines (x+1)/(7)=(y+1)/(-6)=(z+1)/(1) and (x-3)/(1)=(y-5)/(-2)=(z-7)/(1) .