Someone help me please An ABCDEFGH cube is considered.
We note K the middle of [CD]. Point I is also considered as vector FI=1/3FB(vector)
We're in the marker (A;AB, AD, AE).
l)Give the coordinates of all the points of the figure.
--> I answered: A(0,0,0); B(1,0,0); C(1,1,0); D(0,1,0); E(0,0,1); F(1,0,1); G(1,1,1); H(0,1,1).

2) The plan (EIK) is considered. J is noted at the intersection of plan with the right (BC). Show that J's coordinates are in shape (1;y;0) ​