所以大豆的净值最优域Y1=70+y1为 70-.8.400000006<=Y1<=70+6233333333 即61.6(=Y1(=132.3 >所以玉米的净值最优域Y2=60+y2为 60-187〈=Y2(=60+8400000006 卩-127(=Y2(=68.4 所以小麦的净值最优域Y3=40+y3为 40-(1E+30)(=Y3(=40+24.15 即Y3(=64.15➢ 所以大豆的净值最优域Y1=70+y1为 70- 8.400000006 <=Y1 <=70+62.33333333 即61.6〈=Y1〈=132.3 ➢ 所以玉米的净值最优域Y2=60+y2为 60-187〈=Y2〈=60+8.400000006 即-127〈=Y2〈=68.4 ➢ 所以小麦的净值最优域Y3=40+y3为 40-(1E+30)〈=Y3〈=40+ 24.15 即Y3〈=64.15