已知函数f(x)=x平方-2(1-m)x+2的单调减区间是(-无穷,4],求实数x的值已知函数f(x)=x平方-2(1-m)x+2的单调减区间是(-无穷,4],求实数m的值
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![已知函数f(x)=x平方-2(1-m)x+2的单调减区间是(-无穷,4],求实数x的值已知函数f(x)=x平方-2(1-m)x+2的单调减区间是(-无穷,4],求实数m的值](/uploads/image/z/3812838-6-8.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dx%E5%B9%B3%E6%96%B9-2%281-m%29x%2B2%E7%9A%84%E5%8D%95%E8%B0%83%E5%87%8F%E5%8C%BA%E9%97%B4%E6%98%AF%28-%E6%97%A0%E7%A9%B7%2C4%5D%2C%E6%B1%82%E5%AE%9E%E6%95%B0x%E7%9A%84%E5%80%BC%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0f%28x%29%3Dx%E5%B9%B3%E6%96%B9-2%281-m%29x%2B2%E7%9A%84%E5%8D%95%E8%B0%83%E5%87%8F%E5%8C%BA%E9%97%B4%E6%98%AF%28-%E6%97%A0%E7%A9%B7%2C4%5D%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%80%BC)
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