Excercise 2
A(1,1,1) en B(2,1,3) en C(0,1,-1)
Matrice (ABCD) = 3
D = ?
0 = 1 k + 2 l
1 = 1 k + 1 l
- 1 = 1 k + 3 l
=> l = -1 en k = 2 => hc = (-1/2)
(ABCD) = 3 => (ABCD) = hc / hd => hd = (-1/2)/3 => hd = (-1/6)
= > paramètres homogènesD = 1, (-1/6)