怎么用导数证明对勾函数单调性我是高一的,证明对勾函数单调性作差法太烦了,老师说用导数做.求用导数证明对勾函数单调性的详细过程和方法.好的追加30分!绝不食言!例如f(x)=x+1/x 写下证明
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![怎么用导数证明对勾函数单调性我是高一的,证明对勾函数单调性作差法太烦了,老师说用导数做.求用导数证明对勾函数单调性的详细过程和方法.好的追加30分!绝不食言!例如f(x)=x+1/x 写下证明](/uploads/image/z/2623619-11-9.jpg?t=%E6%80%8E%E4%B9%88%E7%94%A8%E5%AF%BC%E6%95%B0%E8%AF%81%E6%98%8E%E5%AF%B9%E5%8B%BE%E5%87%BD%E6%95%B0%E5%8D%95%E8%B0%83%E6%80%A7%E6%88%91%E6%98%AF%E9%AB%98%E4%B8%80%E7%9A%84%2C%E8%AF%81%E6%98%8E%E5%AF%B9%E5%8B%BE%E5%87%BD%E6%95%B0%E5%8D%95%E8%B0%83%E6%80%A7%E4%BD%9C%E5%B7%AE%E6%B3%95%E5%A4%AA%E7%83%A6%E4%BA%86%2C%E8%80%81%E5%B8%88%E8%AF%B4%E7%94%A8%E5%AF%BC%E6%95%B0%E5%81%9A.%E6%B1%82%E7%94%A8%E5%AF%BC%E6%95%B0%E8%AF%81%E6%98%8E%E5%AF%B9%E5%8B%BE%E5%87%BD%E6%95%B0%E5%8D%95%E8%B0%83%E6%80%A7%E7%9A%84%E8%AF%A6%E7%BB%86%E8%BF%87%E7%A8%8B%E5%92%8C%E6%96%B9%E6%B3%95.%E5%A5%BD%E7%9A%84%E8%BF%BD%E5%8A%A030%E5%88%86%21%E7%BB%9D%E4%B8%8D%E9%A3%9F%E8%A8%80%21%E4%BE%8B%E5%A6%82f%28x%29%3Dx%2B1%2Fx+%E5%86%99%E4%B8%8B%E8%AF%81%E6%98%8E)
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