If the line through the points `(3,1,2)` and `(4,lambda,0)` is parallel to the line through the points `(1,2,1)` and `(2,3,-1)`, find `lambda`

Show that the line thorugh the points (4,7,8) and (2,3,4) is parallel to the line through the points (-1,-2,1) and (1,2,5) .

Show that the line through the points : (4,7,8), (2,3,4) is parallel to the line through the points (-1,-2,1) and (1,2,5).

Show that the line through points (4,7,8) and 2,3,4 ) is parallel to the line through the points (-1,-2,1) and (1,2,5) .

Show that the line through points (4,7,8) and 2,3,4) is parallel to the line through the points (-1,-2,1) and (1,2,5)dot

Show that the line through the point (4, 7, 8) and (2, 3, 4) is parallel to the line through the points (-1, -2, 1) and (1, 2, 5).

Show that the line through the points (4,7,8), (2,3,4) is parallel to the line through the points (-1,-2,1), (1,2,5).

Show that the line through the points (4,7,8),(2,3,4) is parallel to the line through the points (-1,-2,1) (1,2,5)

Show that the line through the point (4, 7, 8) and (2, 3, 4) is parallel to the line through the points (-1, -2, 1) and (1, 2, 5).

Show that the line through the points (4,7,8),(2,3,4) is parallel to the line through the points (-1,-2,1), (1,2,5)

Find the value of p for which the line through the points A(4,1,2) and B(5,p,0) is perpendicular to the line through the points C(2,1,1) and D(3,3,-1) .