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请用LINGO或者Exccel软件求解下列规划问题的解: 1、线性规划问题是否有最优解?(存在最优解填写:是;不存在最优解填写:否) 如果不存在最优解,以下最优值和最优解请填写:无 2、最优值,min Z=?(四舍五入,不保留小数点,如:12.4321,填写12) 3、最优解,x1=?(四舍五入,不保留小数点,如:12.4321,填写12) 4、最优解,x2=?(四舍五入,不保留小数点,如:12.4321,填写12) 5、最优解,x3=?(四舍五入,不保留小数点,如:12.4321,填写12)
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