已知函数
.
(1)求函数
的单调性.
(2)证明:
在
上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca47d2e8724200bf868215c66c5cfe40.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ce9235e1efa12b238bb24ca61a0bfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
更新时间:2020-06-29 15:50:53
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适中
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(1)讨论
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(2)当
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【推荐2】已知函数
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名校
【推荐3】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da86c33fca8699b4236f19a10de2f48.png)
(1)若a=2,求
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(2)若函数
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解答题-证明题
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适中
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【推荐1】已知函数
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(1)当
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(2)讨论函数
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解答题-证明题
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【推荐2】已知函数
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(1)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c7ca03574419ca25c7be8d62af9a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f68ef697c57cfb94109d4eeec42ee4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6bfefa5b41faae17987876d570685d.png)
(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f36d14f56c213cf20676a1aaa24702e.png)
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