已知函数f(x)=x﹣lnx.
(1)求定义域及单调区间;
(2)求f(x)的极值
(1)求定义域及单调区间;
(2)求f(x)的极值
更新时间:2020-07-26 15:53:52
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【推荐2】已知函数
的图象过原点,且
在
,
处取得极值.
(Ⅰ)求函数
的单调区间及极值;
(Ⅱ)若函数
与
的图象有且仅有一个公共点,求实数
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![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/b354db0a383944c991445d5771b3d391.png)
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/19dcdb1217d84b00a0e47452bc84a9d1.png)
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/abb4719c4d8b401fa347d7c629794d43.png)
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/b18f95b7d1494849818e9c58d28ae253.png)
(Ⅰ)求函数
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/19dcdb1217d84b00a0e47452bc84a9d1.png)
(Ⅱ)若函数
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/711bf4b7824744608064eb8b3ddca36c.png)
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/60794ae4365546ea9c1516c7c7723d7e.png)
![](https://img.xkw.com/dksih/QBM/2010/5/11/1569725737852928/1569725743104000/STEM/e6670950e5c24116a8dced22ef136981.png)
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【推荐1】若2是函数
的极大值点,求函数
的极大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6491548cdffaf4630b1991c6d1f12601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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【推荐2】已知函数
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b102f145080d5944a1a05ee1ed7f5424.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
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【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11e912b39629d16a1cd170699bbe49b8.png)
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(2)求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11e912b39629d16a1cd170699bbe49b8.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3897bf276a0b6c2121917d39b369df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b672f564d03ed46d092bb130f229ad8.png)
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