观察下列等式: 12x231=132x21,13x341=143x31 23x352=253x32,34x473=374
12x231=132x21,13x341=143x31.=_=
lingo 提示语法错误 Max=12*x31+7*x32+13*x33-0.5*x21-0.5*x22-0.5*x23
求问lingo大神!model:max=3*x11+9*x12-7*x21-x22-x31+5*x32-6*x41;0.
观察下列等式:1×2=13
观察下列等式:12×231=132×21 13×341=143×31 23×352=253×32 34×473=374×
观察下列等式:12×231=132×21,13×341=143×31,23×352=253×32,34×473=374×
66x21十19x21十85x19=?求简算!
观察下列顺序排列的等式:a1=1-13
min @abs(x21+x31-2/3)+@abs(x22+x32+x42-5/3)+@abs(x33+x43-2/3
(2012•珠海)观察下列等式:12×231=132×21,13×341=143×31,
观察下列等式:13=12,13+23=32,13+23+33=62,13+23+33+43=102,…,想一想:等式左边
观察下列等式:1×12=1-12,2×23=2-23,3×34=3-34,…