� �� = − + � = − +3 2 3 2Z X 2X 8 Z (X 1) 7GI S Ả Ử X MAX{X; Y;Z}= �(Y 1)2 =MAX{(X 1) ;(Y 1) ;(Z 1) }2 2 21
1,0�
Ta có:
� �
� = − + � = − +
3
2
3
2
z x 2x 8 z (x 1) 7
Gi s ả ử x max{x; y;z}= �(y 1)2
=max{(x 1) ;(y 1) ;(z 1) }2
2
2
1