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若方程$-x^2+3x-m=3-x$在$x\in (0,+3)$内有唯一解,求实数m的取值范围. 可以引入函数,用图象解题。$-3 ... realnumber 发表于 2015-9-16 10:41
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2025-7-15 14:41 GMT+8
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