1.已知a+b+c=m,A={xI ax^2+bx+c=m},判断1与A的关系.2.已知P={xⅠ2
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![1.已知a+b+c=m,A={xI ax^2+bx+c=m},判断1与A的关系.2.已知P={xⅠ2](/uploads/image/z/2582950-22-0.jpg?t=1.%E5%B7%B2%E7%9F%A5a%2Bb%2Bc%3Dm%2CA%3D%7BxI+ax%5E2%2Bbx%2Bc%3Dm%7D%2C%E5%88%A4%E6%96%AD1%E4%B8%8EA%E7%9A%84%E5%85%B3%E7%B3%BB.2.%E5%B7%B2%E7%9F%A5P%3D%7Bx%E2%85%A02)
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