Show that the following sets of points are coplanar :
(1) (3,9,4),(0,-1,-1),(-4,4,4) and (4,5,1)
(2) (1,-1,-1),(3,1,-1),(0,2,1) and (-2,0,1).

(a) show that the following four points are coplanar : (i) (4,5,1), (0,-1,-1) ,(3,9,4) and (-4,4,4) (ii) (0,-1,0), (2 , 1 , -1) , (1,1,1) and (3,3,0). (b) Show that the four points : (0,-1,-1), (4,5,1), (3,9,4) and (-4,4,4) are coplanar. Also,find the equation of the plane containing them .

Show that the following points are coplanar: (0,\ 4,\ 3),\ (-1,\ -5,\ -3),\ (-2,\ -2,\ 1)a n d\ (1,\ 1,\ -1)dot

Show that the following points are coplanar: (0,\ -1,\ 0),\ (2,\ 1,\ -1),\ (1, ,1\ ,1)a n d\ (3,\ ,3\ 0)dot

By plotting the following points check whether they are collinear or not (i) (1,1), (2,2),(4,4) (ii) (1,0), (-3,0), (0,0) (iii) (2,-2), (0,0), (-3,4)

i^4 (1) 0 (2) -1 (3) 1 (4) 2

Show that the points A(2,1, -1), B(0, -1, 0), C(4, 0, 4) and D(2,0,1) are coplanar.

. Show that the points A(2,1,-1),B(0,-1,0),C(4,0,4) and D(2,0,1) are coplanar.

Show that the points A(2,1,-1),B(0,-1,0),C(4,0,4) and (2,0,1) are coplanar.

The points (-2,3,4), (1,1,2) and (4,-1,0) are