不等式（m+1）x² -（1-m）x+m≤0对于任意实数x成立,求m范围
人气：414 ℃ 时间：2020-06-10 19:19:57
解答
要不等式成立必须是一个一元二次方程（一次方程具有单调性）,且m
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