In the Euclidean space R' as a model of E.G., Let A(0,0,0), (15 marks) B(1,1,2),C(2,-2,4), D(3,3,6). Find three points among A,B,C,D such that one point ( Name it) of them is between the other two points (name them).Prove your answer. Find the distance between B and D relative to the unit pair a ={A,CShow that CH({A,B}) U CH({D,B})= CH({A,D}).