已知函数
.
(1)若
为
的极值点,求
的值;
(2)当
时,方程
有实数根,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1612931bf1eb38108a91e76f5a87072.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0ec2385a95333c71a4ac35e57b3177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
19-20高三上·河北唐山·期中 查看更多[3]
【全国百强校】河北省唐山一中2019届高三上学期期中考试数学文试题(已下线)2019年1月16日 《每日一题》文数高考二轮复习-导数与函数的极值、最值(已下线)《每日一题》理数高考二轮复习-导数与函数的极值、最值
更新时间:2018-11-25 19:34:35
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(1)求实数a的取值范围;
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【推荐1】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c398cd9ca719aa1c498c29872acb2fb4.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c03be0a8cf3030ff3ef4259e75b849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d70009d48ea5ed5e20cc5eff3d557e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0700278d23a87edbb282084d3e7f834.png)
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