" The points "(1,5),(2,4)" and "(3,3)" are "

Find the equation of planes passing throught the points (-1,5,4),(2,3,4) and (2,3,-1)

Points (1,-1),(2,-2),(4,-5) and (-3,-4)

Find the coordinates of the point where the line through the points (3,4,5) and (2,3,1), crosses the plane determined by the points (1,2,3),(4,2,3) and (0,4,3).

Show that the line through the points (1,-1,2) and (3,4-2) is perpendicular to the line through the points (0,3,2) and (3,5,6).

Prove that points (2,-1,1),(1,-3,-5) and (3,-4,-4) are the vertices of a righat angled triangle.

The points (2,5,-4) , (4,7,-6) , (1,4,-3) are

Show that the line through the points (1, -1, 2) and (3, 4,-2) is perpendicular to the through the points (0, 3,2) and (3, 5, 6).

Show that the line through the points (1, -1, 2) and (3, 4,-2) is perpendicular to the through the points (0, 3,2) and (3, 5, 6).

Show that (-1,4,-3) is the circumcentre of the triangle formed by the points (3,2,-5),(-3,8,-5) and (-3,2,1)