解题方法
1 . 已知函数
.
(1)讨论
的单调性;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f2247b4830f0984819e43822722447.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6472cc029d5a2578c992feef08326e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7日内更新
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2卷引用:内蒙古名校联盟2024届高三下学期联合质量检测文科数学试题
解题方法
2 . 若
在
上恒成立,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7974ef52b7dca03ef0daad968bb53473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264e54b81230f39733dcc4f39cf31c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
3 . 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)
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2024-04-23更新
|
1018次组卷
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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
解题方法
4 . 已知不等式
对任意的实数x恒成立,则
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37c0050be29ca573dd25c21ecb8a7718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
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2024-03-27更新
|
1248次组卷
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3卷引用:2024届内蒙古自治区包头市高三下学期二模数学(理)试题
5 . 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)
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6 . 已知函数
.
(1)判断
的零点个数并说明理由;
(2)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b5efb4ba8af78864173cac998c7477.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e575edd9b3312cd2a9c0b625eb745f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-03-21更新
|
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3卷引用:内蒙古自治区包头市2024届高三下学期适应性考试理科数学试题(二)
内蒙古自治区包头市2024届高三下学期适应性考试理科数学试题(二)四川省成都市2024届高三下学期第二次诊断性检测文科数学试题(已下线)2023-2024学年高二下学期期中复习解答题压轴题十七大题型专练(1)
7 . 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)
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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)
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9 . 已知函数
,若对于
上任意两个不相等的数
都满足
.则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfda500d3dbdd735989e2a62a668d5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b222b256b37f83fa24a3a4b6527f58d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a5b3046a39c927fc580c2e5a0d5c130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
10 . 已知函数 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b988be8419be2da12d12fef948269b.png)
(1)讨论
的单调性;
(2)证明:当
时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0b988be8419be2da12d12fef948269b.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29939c0ca20c4b20397aca1c86eacd1b.png)
您最近一年使用:0次
2024-03-12更新
|
1354次组卷
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7卷引用:内蒙古部分学校2024届高三下学期一模考试数学(理科)试题
内蒙古部分学校2024届高三下学期一模考试数学(理科)试题青海省海南州贵德高级中学2024届高三七模(开学考试)数学(理科)试题(已下线)第1套 全真模拟篇 【模块三】(已下线)模块2专题7 对数均值不等式 巧妙解决双变量练福建省福州格致中学2023-2024学年高二下学期3月限时训练(月考)数学试卷(已下线)2023-2024学年高二下学期期中复习解答题压轴题十七大题型专练(1)福建省莆田第二十五中学2023-2024学年高二下学期期中考试数学试题