设变量x,y满足①x-y≤10,②0≤x+y≤20,③0≤y≤15,求2x+3y的最大值,
问题描述:
设变量x,y满足①x-y≤10,②0≤x+y≤20,③0≤y≤15,求2x+3y的最大值,
答
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设变量x,y满足①x-y≤10,②0≤x+y≤20,③0≤y≤15,求2x+3y的最大值,
发反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复