Show that the lines `(x-1)/3=(y+1)/2=(z-1)/5 and (x-2)/4=(y-1)/3=(z+1)/(-2)` do not intersect each other.

Show that the lines (x-1)/3=(y+1)/2=(z-1)/5a n d(x+2)/4=(y-1)/3=(z+1)/(-2) do not intersect.

Show that the lines (x-1)/(3)=(y+1)/(2)=(z-1)/(5) " and " (x-2)/(2)=(y-1)/(3)=(z+1)/(-2) do not intersect each other .

Show that the lines (x-1)/(2)=(y+1)/(3)=z " and " (x+1)/(5)=(y-2)/(1)z=2 do not intersect each other .

Show that the lines (x-1)/(2)=(y-2)/(3)=(z-3)/(4) " and " (x-4)/(5)=(y-1)/(2)=z intersect each other . Find their point of intersection.

The lines (x-1)/(2)=(y+1)/(2)=(z-1)/(4) and (x-3)/(1)=(y-6)/(2)=(z)/(1) intersect each other at point

Show that the lines (x-5)/4=(y-7)/4=(z+3)/(-5) and (x-8)/7=(y-4)/1=(z-5)/3 intersect each other

Show that the lines (x-1)/(1) = (y-2)/(-1) = (z-1)/(1) and (x-1)/(1-) = (y-1)/(-1) = (z-1)/(2) do not intersect.