已知函数
.
(Ⅰ)讨论
的单调性;
(Ⅱ)当
存在三个不同的零点时,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3e4959852495bcb30adb8f780950f0f.png)
(Ⅰ)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
更新时间:2020-07-05 08:41:23
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名校
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08455c7bffe5aecc542d16d331aa7943.png)
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(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516ffb41e4b6f3726a1990d86c2e7ba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91ab19ce42041af758d6921c439e4fc.png)
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