Show that the lines `(x-4)/(1) = (y+3)/(-4) = (z+1)/(7)` and `(x-1)/(2) = (y+1)/(-3) = (z+10)/(8)` intersect. Also find the co-ordinates of their point of intersection.

Show that the lines (x-4)/(1)=(y+3)/(-4)=(z+1)/7 and (x-1)/(2) =(y+1)/(-3)=(z+10)/(8) intersect. Find the coordinates of their point of intersection.

Show that the lines : (x + 1)/(3) = (y + 3)/(5) = (z + 5)/(7) and " " (x -2)/(1) = (y - 4)/(3) = (z -6)/(5) intersect each other. Also, find the their point of intersection.

Show that the lines ( x+1)/(-10) = ( y + 3)/(-1) = ( z - 4) / (1) "and" (x + 10)/(-1) = ( y+1)/(-3) = (z -1)/(4) intersect each other and find the coordinates of the points of intersection .

Show that the lines (x+1)/(3)=(y+3)/(5) =(z+5)/(7) " and " (x-2)/(1)=(y-4)/(3)=(z-6)/(5) intersect. Also find their point of intersection.

Show that the lines (x+1)/(3)=(y+3)/(5)=(z+5)/(7) and (x-2)/(1)=(y-4)/(3)=(z-6)/(5) intersect.Also find the their point of intersection.

Show that the lines (x)/(1) =(y-2)/(2)=(z+3)/(3) " and " (x-2)/(2) =(y-6)/(3) =(z-3)/(4) intersect and find their point of intersection.