Solution:
Let (5, 5, ) divide the segment joining (-1, 3,2) and (4,2, -2) in the ratio k : 1
So, comparing z-coordinate with k = -2/3, we get
If the points (-1, 3, 2), (4, 2, -2) arid (5, 5, ) are collinear, then
Let (5, 5, ) divide the segment joining (-1, 3,2) and (4,2, -2) in the ratio k : 1
So, comparing z-coordinate with k = -2/3, we get