Question

Prove that the 4point poins (3,2,1) (4,5,5) (4, 2,-2) and (6,5,-1 )are complainer ​

Answer 1

Answer:

Given four points (0,−1,−1),(4,5,1),(3,9,4) and (−4,4,4)

=4(50−25)−6(15+20)+2(15+40)

=100−210+110=0

Hence the given points are coplanar