f(x)=x-1/x-alnx,a∈R,(1)讨论f(x)的单调性(2)若f(x)有两个极值点x1,x2,记过点A(x1,f(x1)),B(x2,f(x2))的直线的斜率为k,问:是否存在a,使k=2-a 麻烦各位讲清楚、做完整,
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![f(x)=x-1/x-alnx,a∈R,(1)讨论f(x)的单调性(2)若f(x)有两个极值点x1,x2,记过点A(x1,f(x1)),B(x2,f(x2))的直线的斜率为k,问:是否存在a,使k=2-a 麻烦各位讲清楚、做完整,](/uploads/image/z/14883981-69-1.jpg?t=f%28x%29%3Dx%EF%BC%8D1%2Fx%EF%BC%8Dalnx%2Ca%E2%88%88R%2C%281%29%E8%AE%A8%E8%AE%BAf%28x%29%E7%9A%84%E5%8D%95%E8%B0%83%E6%80%A7%282%29%E8%8B%A5f%28x%29%E6%9C%89%E4%B8%A4%E4%B8%AA%E6%9E%81%E5%80%BC%E7%82%B9x1%2Cx2%2C%E8%AE%B0%E8%BF%87%E7%82%B9A%28x1%2Cf%28x1%29%29%2CB%28x2%2Cf%28x2%29%29%E7%9A%84%E7%9B%B4%E7%BA%BF%E7%9A%84%E6%96%9C%E7%8E%87%E4%B8%BAk%2C%E9%97%AE%EF%BC%9A%E6%98%AF%E5%90%A6%E5%AD%98%E5%9C%A8a%2C%E4%BD%BFk%3D2-a+%E9%BA%BB%E7%83%A6%E5%90%84%E4%BD%8D%E8%AE%B2%E6%B8%85%E6%A5%9A%E3%80%81%E5%81%9A%E5%AE%8C%E6%95%B4%2C)
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