(1)当P1/P2>a,全部用来购买X2,x2=M/P1
(2)当P1/P2<a,全部用来购买X1,X1=M/P2
(3)当P1/P2=a,在M范围内,任意选择X1和X2的组合。a*X1+X2=M/P2
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楼主: SYMPL
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[经济] 告诉我这道题的答案,谢谢 |
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