用對(duì)偶單純形法求解下列線性規(guī)劃問(wèn)題:
已知線性規(guī)劃問(wèn)題 其對(duì)偶問(wèn)題的最優(yōu)解為Yl﹡=4,Y2﹡=1,試應(yīng)用對(duì)偶問(wèn)題的性質(zhì)求原問(wèn)題的最優(yōu)解。
已知線性規(guī)劃問(wèn)題 應(yīng)用對(duì)偶理論證明該問(wèn)題最優(yōu)解的目標(biāo)函數(shù)值不大于25