设函数
.
(Ⅰ)求
在
上的最小值;
(Ⅱ)若
图象与
轴交于
两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaabe529fc8ffe45507ad68304df7086.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4a57fa701747e4b70ce26eb18ab8cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e7b93a0ee368e333465fdf4ee249e41.png)
更新时间:2020-05-06 08:29:21
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解答题-证明题
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较难
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名校
【推荐1】已知
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(1)判断函数
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(2)若
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【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051b07f6c5ab13a5df7607ef22850b86.png)
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【推荐1】已知函数f(x)=x+alnx,a∈R.
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