设函数
.
(Ⅰ)求函数
的极值;
(Ⅱ)若
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8d1db26bc5de02ec53ded5429d8574.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c7b69e93488fcd2a195cb9793e94fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dee95bb996f056720e02373524d991c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2019-09-12 12:17:54
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【推荐1】设
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【推荐2】已知函数
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(Ⅰ)求
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(Ⅱ)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45807b025f0555a6975070504261047d.png)
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【推荐1】已知函数
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(1)求曲线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
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