已知三个集合a={x↓x2-3x+2=0},b={x↓x2-ax+(a-1)=0,c={x↓x2-3x+b=0},问问同时满足b是a的真子集的实数a和b是否存在?若存在,求出a,b的值的集合,若不存在,说明理由
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![已知三个集合a={x↓x2-3x+2=0},b={x↓x2-ax+(a-1)=0,c={x↓x2-3x+b=0},问问同时满足b是a的真子集的实数a和b是否存在?若存在,求出a,b的值的集合,若不存在,说明理由](/uploads/image/z/6861373-61-3.jpg?t=%E5%B7%B2%E7%9F%A5%E4%B8%89%E4%B8%AA%E9%9B%86%E5%90%88a%3D%EF%BD%9Bx%E2%86%93x2%EF%BC%8D3x%EF%BC%8B2%3D0%EF%BD%9D%2Cb%3D%EF%BD%9Bx%E2%86%93x2%EF%BC%8Dax%EF%BC%8B%EF%BC%88a%EF%BC%8D1%EF%BC%89%3D0%2Cc%3D%EF%BD%9Bx%E2%86%93x2%EF%BC%8D3x%EF%BC%8Bb%3D0%7D%2C%E9%97%AE%E9%97%AE%E5%90%8C%E6%97%B6%E6%BB%A1%E8%B6%B3b%E6%98%AFa%E7%9A%84%E7%9C%9F%E5%AD%90%E9%9B%86%E7%9A%84%E5%AE%9E%E6%95%B0a%E5%92%8Cb%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8%3F%E8%8B%A5%E5%AD%98%E5%9C%A8%2C%E6%B1%82%E5%87%BAa%2Cb%E7%9A%84%E5%80%BC%E7%9A%84%E9%9B%86%E5%90%88%2C%E8%8B%A5%E4%B8%8D%E5%AD%98%E5%9C%A8%2C%E8%AF%B4%E6%98%8E%E7%90%86%E7%94%B1)
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