若x,y满足约束条件{x≥0,x+2y≥3,2x+y≤3},则z=x-y的最小值是 A若x,y满足约束条件{x≥0,x+2y≥3,2x+y≤3},则z=x-y的最小值是 A -3B 0C 3/2D 3
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![若x,y满足约束条件{x≥0,x+2y≥3,2x+y≤3},则z=x-y的最小值是 A若x,y满足约束条件{x≥0,x+2y≥3,2x+y≤3},则z=x-y的最小值是 A -3B 0C 3/2D 3](/uploads/image/z/2450801-65-1.jpg?t=%E8%8B%A5x%2Cy%E6%BB%A1%E8%B6%B3%E7%BA%A6%E6%9D%9F%E6%9D%A1%E4%BB%B6%EF%BD%9Bx%E2%89%A50%2Cx%2B2y%E2%89%A53%2C2x%2By%E2%89%A43%EF%BD%9D%2C%E5%88%99z%3Dx-y%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E6%98%AF+A%E8%8B%A5x%2Cy%E6%BB%A1%E8%B6%B3%E7%BA%A6%E6%9D%9F%E6%9D%A1%E4%BB%B6%EF%BD%9Bx%E2%89%A50%2Cx%2B2y%E2%89%A53%2C2x%2By%E2%89%A43%EF%BD%9D%2C%E5%88%99z%3Dx-y%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC%E6%98%AF+A+-3B+0C+3%2F2D+3)
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