已知函数
,
.
(1)当
时,讨论函数
的单调性;
(2)当
时,对任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a04eee754d1db6bcb71844f52df5586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360ff131c51a4ef6745538c18cec92c2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
2020·全国·模拟预测 查看更多[7]
(已下线)2021年全国高中名校名师原创预测卷新高考数学(第九模拟)(已下线)2021年全国高中名校名师原创预测卷 理科数学 全国卷Ⅰ(第一模拟)(已下线)2021年全国高中名校名师原创预测卷 文科数学 (第二模拟)(已下线)2021年全国高中名校名师原创预测卷 文科数学 全国卷Ⅰ(第一模拟)(已下线)2021年全国高中名校名师原创预测卷 理科数学 (第二模拟)(已下线)综合测试卷(巅峰版)-【新教材优创】突破满分数学之2020-2021学年高二数学重难点突破(人教A版2019选择性必修第二册)湖北省十堰市东风高级中学2021-2022学年高二下学期期末综合数学试题 (2)
更新时间:2021-01-06 10:15:51
|
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解答题-问答题
|
较难
(0.4)
名校
【推荐1】设函数
.
(1)当
时,求
的单调区间;
(2)若当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0775c7f80ffd673e261b450e46f9007e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f498b6874410fb46e9807e04371e6e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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较难
(0.4)
名校
解题方法
【推荐2】已知函数
,
,
,且
.
(1)若
,
,求函数
的极值;
(2)设
,当
时,对任意
,都有
成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47d99099727587367143039fd61ce2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd0914dc4d4c7f75710ff460a286fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7646f2f6c1d40a3fa2378ecd038bf58a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f15318d2d6664ecdf81180baf70a0c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
【推荐1】设
,
,
,函数
,
.
(1)讨论函数
的单调性;
(2)若
时,函数
有三个零点
,
,
,其中
,试比较
与
的大小关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5331eda67df4c98b3e0dc31a46d381ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a64103561364ac4c9460a72c9e154bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded5b08362289af5696ca4cd1a6f36d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f291d4a407115b7a83c2621489f5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0a92b7176bb67c18ca5f043eba98b5.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce4cea6c8b740796100f76320ae9806.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10db649c154fc538026c0779325b91f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fd39b02127b0b5085c2dcc7205f5a21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f0f405ce844313744d1ccfd222c3dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec733ccf28e47e673cb7d4a73be08a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b546dfbc651d94c624d57b25bcee6331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e20d46ff63add7948a6a26c7baa9ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐2】已知函数
,
.
(1)若
,讨论函数
的单调性;
(2)若
,对于任意的
,
恒成立,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52cea7301d2fe883242ec7205f1486bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5176a196c670d4ecd889271b2f5f0b6b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a7e34f15b46c51888ad96b233f0f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
【推荐3】已知函数
;
(1)当
时,求函数
的单调区间;
(2)求函数
在
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9de496d9a6daa40e26b6915e5c6b5e68.png)
(1)当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724f1face977df2f57d4004e68d92b6d.png)
您最近一年使用:0次