二次方程根?关于x的方程 x方+(m+1)x+1=0(1)若方程两实根都在(0,﹢∞)上,求实数m的取值范围(2)若方程的两实根在(1/2,﹢∞)上,同上(3)若方程的两实根在(0,2)上,同上
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![二次方程根?关于x的方程 x方+(m+1)x+1=0(1)若方程两实根都在(0,﹢∞)上,求实数m的取值范围(2)若方程的两实根在(1/2,﹢∞)上,同上(3)若方程的两实根在(0,2)上,同上](/uploads/image/z/3980691-27-1.jpg?t=%E4%BA%8C%E6%AC%A1%E6%96%B9%E7%A8%8B%E6%A0%B9%3F%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8B+x%E6%96%B9%2B%EF%BC%88m%2B1%EF%BC%89x%2B1%3D0%EF%BC%881%EF%BC%89%E8%8B%A5%E6%96%B9%E7%A8%8B%E4%B8%A4%E5%AE%9E%E6%A0%B9%E9%83%BD%E5%9C%A8%EF%BC%880%2C%EF%B9%A2%E2%88%9E%EF%BC%89%E4%B8%8A%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%EF%BC%882%EF%BC%89%E8%8B%A5%E6%96%B9%E7%A8%8B%E7%9A%84%E4%B8%A4%E5%AE%9E%E6%A0%B9%E5%9C%A8%EF%BC%881%2F2%2C%EF%B9%A2%E2%88%9E%EF%BC%89%E4%B8%8A%2C%E5%90%8C%E4%B8%8A%EF%BC%883%EF%BC%89%E8%8B%A5%E6%96%B9%E7%A8%8B%E7%9A%84%E4%B8%A4%E5%AE%9E%E6%A0%B9%E5%9C%A8%EF%BC%880%2C2%EF%BC%89%E4%B8%8A%2C%E5%90%8C%E4%B8%8A)
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