名校
解题方法
1 . 已知函数
,
.
(1)若
在
处取得极值,求
的值;
(2)设
,试讨论函数
的单调性;
(3)当
时,若存在正实数
满足
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16382d2feded5c81e086989d46878ba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980a8c4eb822aeb591ceacfe8a7aaa11.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679353e656a54993c041ebd39ec7b31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924a99a014b343122d68282063aa0df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd330acca8e17f5ff9aca1f0f312df50.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36a91b78ea833d5b09c11366324a845.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760effa3c34aefb5d6bbd0e7ca0d48fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4115c137af3720f88cba7557ce4e70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/646abb51bfb8b5e30d0bb7cfe995a390.png)
您最近一年使用:0次
2018-11-18更新
|
1252次组卷
|
5卷引用:新疆石河子市第一中学2024届高三上学期11月月考数学试题
新疆石河子市第一中学2024届高三上学期11月月考数学试题江苏省盐城市东台中学2018届高三学业质量监测数学试题山东省济南市历城第二中学2019届高三11月月考数学(文)试题(已下线)重难点突破05 极值点偏移问题与拐点偏移问题(七大题型)-2福建省“宁化、永安、尤溪、大田、沙县一中”五校协作2024届高三上学期11月联考数学试题
20-21高三下·山东·阶段练习
名校
2 . 已知函数
.
(1)讨论函数
的单调性;
(2)当
时,求证:
在
上恒成立;
(3)求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1dd6cb435d512af3d70a64c104a066c.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
(3)求证:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e39094e7511d1926df1d7764188b5d40.png)
您最近一年使用:0次
2021-03-07更新
|
455次组卷
|
7卷引用:新疆石河子第一中学2021-2022学年高二下学期5月月考数学(理)试题
解题方法
3 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)证明:当
时,
;
(3)若
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5453bc6293cb6659db3db1933e83ca97.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b7f97e4f62a16b355a4526e127d41fb.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41d2bcb895d96d6e10e59a1ed1a1c613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
4 . 已知
.
(1)当
时,求曲线
在
处的切线l的方程,并证明
的图像在直线l的上方(切点除外);
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6326bb588482f5ca6a42232401605968.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a508720957af1de8fe9d03829fb3cde.png)
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5 . 已知函数
,曲线
在点
处的切线与
轴平行.
(1)求
的值;
(2)证明:函数
存在唯一的极大值点
,并且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed10c4f58919ecc5b3fcbaae76c442f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bbe1361792728940b334714fe46dda9.png)
您最近一年使用:0次
解题方法
6 . 已知函数
,
.
(1)若曲线
在
处的切线与直线
垂直,求函数
的极值;
(2)若函数
的图象恒在直线
的下方.
①求
的取值范围;
②求证:对任意正整数
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff1288bfe4c6c48ff41af92d2687471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ea9824af71c9da5db5a00ec06063024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1bac41c8df6277a85c80a52ec73150.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
②求证:对任意正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10e468312d09c6563c9094b710a35a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ff47f9477a667cb16c41126959c5dc7.png)
您最近一年使用:0次
2020-04-11更新
|
488次组卷
|
2卷引用:新疆2019-2020学年高三年级第二次联考理科数学试题
7 . 已知函数
的图象在点
处的切线与直线
垂直.
(1)判断
的零点的个数,并说明理由;
(2)证明:
对
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d8c42c314a07da5e495a1280253ef9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f1a686b80b8f109a929f58c2de7201d.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02e32435aa5b57a34ed4a39b07c5530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cc4136bd17997e11a7f8abcb19f9018.png)
您最近一年使用:0次
2020-07-21更新
|
485次组卷
|
4卷引用:新疆生产建设兵团第三师图木舒克市第二中学2023届高三上学期月考数学(理)试题
名校
8 . 已知函数
的图象在点
处的切线的斜率为
.
(1)讨论
的单调性;
(2)当
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131bec715d45773aaf82c344ec607ba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7570c77bd375f4dfdffee64fce8d1a9a.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b238d96dda4c5994dddfdf5616fae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba3b2826685c580c6e98d304ded27d6f.png)
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2020-01-17更新
|
482次组卷
|
6卷引用:新疆石河子市第一中学2022届高三3月第一周模拟数学(理)试题
新疆石河子市第一中学2022届高三3月第一周模拟数学(理)试题2019年12月广东省高三调研考试数学(理)试题辽宁省葫芦岛协作校2019-2020学年高三上学期第二次考试 数学(理)试题(已下线)2020届高三12月第01期(考点03)(文科)-《新题速递·数学》(已下线)2020届高三12月第01期(考点02)(文科)-《新题速递·数学》2020届全国大联考高三联考数学(文)试题
9 . 已知函数
,其中
且
的最小值为0.
(1)求
的值;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f51b45c6ae148fd6ee91b3cd79050726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e7581a9b1bdf7e15be780aaaecc4a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1dfcf2fc9bda5942cc795f39ca2d596.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
.
(1)讨论的单调性;
(2)若
恒成立,求
的取值范围;
(3)在(2)的条件下,
有两个不同的根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7baac46881798c16564d0e59e94afbe.png)
(1)讨论的单调性;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)在(2)的条件下,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2baa8f38ccee2d9f3eb6cad4f9617b.png)
您最近一年使用:0次