1 . 已知函数
.
(1)求
在
处的切线方程
,并证明
的图象在直线
的上方;
(2)若
有两个不相等的实数根
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d4b35e41dfa9391bf5004948d4ed574.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b331497342e72895c306815d1cca62b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b222b256b37f83fa24a3a4b6527f58d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5dc5d64a9a86dd15c47e7d129fc622.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
.
(1)若
在
上单调递增,求
的取值范围;
(2)若
有2个极值点
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/604366fe4c2eed6b0b56f5f530221b5c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fd9be2b0d2a46f45b29c391a6c93832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b002da4ece8f56f40e3b16e84fb048.png)
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2024-02-20更新
|
1086次组卷
|
4卷引用:内蒙古自治区赤峰市松山外国语学校2024届高三下学期开学考试数学(理)试题
3 . 已知函数
.
(1)讨论
的单调性;
(2)证明:在
上
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56db213ef62d4eaf05c88f07d9dff028.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f39eaea6a8a48320351f2b3900036782.png)
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2024-01-29更新
|
979次组卷
|
4卷引用:内蒙古自治区锡林郭勒盟2023-2024学年高三上学期1月期末教学质量检测文科数学试题
内蒙古自治区锡林郭勒盟2023-2024学年高三上学期1月期末教学质量检测文科数学试题内蒙古包头市2024届高三上学期期末教学质量检测数学(文)试题(已下线)5.3.1函数的单调性 第三课 知识扩展延伸(已下线)重难点2-4 利用导数研究不等式与极值点偏移(8题型+满分技巧+限时检测)
名校
解题方法
4 . 已知函数
,
且
恒成立.
(1)求实数a取值的集合;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1737b509d3c77824cd98c7d9ff542f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce32efbb0a8c25d29c7d2effe7e5dca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
(1)求实数a取值的集合;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984532520df0e5b9113cf3b8bde45a1b.png)
您最近一年使用:0次
2024-03-03更新
|
359次组卷
|
3卷引用:内蒙古自治区锡林郭勒盟2023-2024学年高三下学期开学联考理科数学试题
名校
5 . 已知函数
.
(1)当
时,证明:
有且仅有一个零点.
(2)当
时,
恒成立,求a的取值范围.
(3)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467fb8a741acbbae9548afdc186cd686.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7f6313f09d17496008ebe3cc1fca0ca.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade0e43ca66880fa7a94c2121bfd0df2.png)
您最近一年使用:0次
2024-04-23更新
|
1008次组卷
|
4卷引用:内蒙古自治区呼伦贝尔市2024届高三下学期二模理科数学试题
6 . 设函数
.
(1)当
时,讨论
的单调性,并证明
;
(2)证明:①当
时,
;
②当
时,
,当
时,
;
③当
时,函数
存在唯一的零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583f8821e1f933b3ae9ec56f82b20f60.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5f421939ee855f25927e7570d82c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)证明:①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0852d49275f8774ba92620d8af490c72.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a16e7c0a12d8b0be5194fc875a19065.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2b74d89854116e411c089d053df053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221d0bf6c8cf0a1ff429f556a4d9cd5f.png)
③当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51e2b8f615b2cc7eca7fda25efb507d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
7 . 已知函数
.
(1)判断函数
的单调性
(2)证明:①当
时,
;
②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d419cdc9c5f81d7516022c872bc607a.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd69418358ad4e64c9e9ad2cfa429d5.png)
您最近一年使用:0次
2024-03-26更新
|
1146次组卷
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4卷引用:内蒙古呼伦贝尔市2024届高三下学期一模数学(理)试题
内蒙古呼伦贝尔市2024届高三下学期一模数学(理)试题广东省广州四中2023-2024学年高二下学期期中数学试题(已下线)专题1 数列不等式 与导数结合 练(经典好题母题)(已下线)压轴题01集合新定义、函数与导数13题型汇总 -1
解题方法
8 . 已知函数
且
恒成立.
(1)求实数a取值的集合;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50ae60a5066382a41ab365ee014ed899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6acb0f1ac694dd177e99fc385f23318.png)
(1)求实数a取值的集合;
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ab301cd91aa2a5cf9b5fd1365d17cb.png)
您最近一年使用:0次
9 . 已知函数
.
(1)讨论
的单调性;
(2)当
时,证明:在
上
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79d99210d95cea8aad823d04ada1032.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4f133cb14a3a1f0266da8cb55025ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d32af76ca980c959bcde29df3a08aec3.png)
您最近一年使用:0次
2024-02-12更新
|
384次组卷
|
2卷引用:内蒙古自治区锡林郭勒盟2023-2024学年高三上学期1月期末教学质量检测理科数学试题
解题方法
10 . 设函数
,已知
是函数
的极值点.
(1)求
;
(2)设函数
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594b7b3b82fd08473efd08cd4021c304.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc027be769ea7e43c851e081fd8a0bf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bbe149d1f40eefd9e8d98fa420f344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd791cdf876b9a9e58f251f803aeb66.png)
您最近一年使用:0次