解题方法
1 . 已知函数
.
(1)当
时,求函数
的极值;
(2)若
,
恒成立,求实数a的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a420025642017aac718037fda459dba2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80d1d7098035d2ef8b6724942d5fc36f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
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2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8aa60dbd52038ca6fa79bdfbe225cf.png)
(1)当
时,判断函数的单调性;
(2)讨论
零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8aa60dbd52038ca6fa79bdfbe225cf.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2020-03-17更新
|
450次组卷
|
4卷引用:内蒙古海拉尔第一中学2022-2023学年高三上学期第一次月考数学(理)试题
内蒙古海拉尔第一中学2022-2023学年高三上学期第一次月考数学(理)试题广东省深圳市2020届高三下学期线上统一测试数学文科试题(已下线)2020届高三3月第01期(考点03)(文科)-《新题速递·数学》广东省名校联盟2021-2022学年高二下学期6月联考数学试题
3 . 已知函数
.
(1)求函数
的单调区间和极值;
(2)若
,试讨论函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc132d1121a1f9b5ced7e0a16d76383d.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c14938effecc7e084aecdd7260aee9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fad23bd55cd175c6f3663c9b86630caf.png)
您最近一年使用:0次
2020-03-09更新
|
444次组卷
|
2卷引用:内蒙古通辽第五中学2020-2021学年高三年级第三次月考试卷文科数学试题
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4 . 设函数
.
(1)求
的单调区间;
(2)设函数
,若当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58bfecd54416e2e0366376999e752915.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69f4853a0c28d2455f967999d60659fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6330540758a21f46fc7a6d1e6328d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e312eca38032174f9739126b81d012.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 下列函数图象中,函数
的图象不可能的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b643e46b9a4af2163b334f55df626730.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2020-01-24更新
|
1662次组卷
|
9卷引用:内蒙古呼和浩特市2022届高三年级质量普查调研考试文科数学试题
6 . 已知函数
,点
,
在曲线
上.
(Ⅰ)讨论函数
的极值情况;
(Ⅱ)若
,比较
与
的大小关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89c03f9ce7f8eff3543ffd70c3e378f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8198c3b302b3820e86763428eb1e91cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3463ced6030af957f13f9ba05b977c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(Ⅰ)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cafb546f1da47f7e61383c6c1de338c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3c7ff7c0ca96552834a5ad7270fad8.png)
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7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ed6410e3f084c35bd90d1a8df80d31.png)
(1)设
时,判断函数
在
上的零点的个数;
(2)当
,是否存在实数
,对
且
,有
恒成立,若存在,求出
的范围:若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ed6410e3f084c35bd90d1a8df80d31.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6455e38ff53ede2508e4d9cb23f0b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89102a8b0053065798286027708b40f9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db4b1d257be599761ccab5dfc0032eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f28983295b313f61aa5525a7939ebc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99662adc4d0bccf42668295710bad56d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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8 . 已知函数
.
(1)求函数
在
处的切线方程;
(2)判断函数
的导函数
在
上的单调性;并求出函数
在
上的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46834523029dece02a18b42e4b3006c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33770cd4511e0f50f2d959ffd913e97f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/266fb77ff0e656c432a02241705ce092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3afbf92f2e07c36a1970007dadf88aa.png)
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9 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
(1)讨论
的单调性;
(2)若
有两个极值点
,且
,当
恒成立时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f98134f5f42ee55b3dca41566fecde34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9cd3690e7aa3debb1ed054a9f622da.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1025e6a74f1344bbc09b87a79778a7d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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10 . 已知
,
,若对
都有
,则a的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7365eab6b6672cfd8654a896385d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe5e4357720de9dc904d5e91675a3bbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6a17043b58e7a0afd18ea01a045979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89aa68707235fe05bf4f4e9ecbba41d2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-12-17更新
|
438次组卷
|
2卷引用:内蒙古自治区赤峰市赤峰二中2019-2020学年高二上学期11月月考数学(理)试题