名校
解题方法
1 . 已知函数
,
,其中
,
.
(1)证明:
;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39777c12512863c9f4096ff25bb9a6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b80d409d66151805501fdd2d2ec449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82eee98cdb28b282013b3b1cfc834a77.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b7151bb4e0e7b4e5f374b7bb852db4.png)
(1)当
时,求
的极值;
(2)若
,不等式
恒成立,求
的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54b7151bb4e0e7b4e5f374b7bb852db4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ca54254022e19c4c629e42dff6852e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
3 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若函数
在
上有最小值,求
的取值范围;
(3)如果存在
,使得当
时,恒有
成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5860d9a568403efb392fbffa5c24fc0d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
(2)若函数
![](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/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)如果存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea69fb59dc615852a0d248675788d82e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f6eb5caf8df72136690703ba74a839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc23217fe5d727feace1509cda9cc2be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2023-05-07更新
|
1361次组卷
|
7卷引用:云南省元谋县第一中学2022-2023学年高二下学期5月月考数学试题
名校
解题方法
4 . 已知
,使
恒成立的有序数对
有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb0e28e38deff9c5411c79a84aa6da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05fce924911d5ed93147dfce9e41c2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
A.2个 | B.4个 | C.6个 | D.8个 |
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2023-05-05更新
|
622次组卷
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3卷引用:云南省“3+3+3”2023届高三高考备考诊断性联考(二)数学试题
2023·全国·模拟预测
名校
5 . 已知
,函数
.
(1)当
时,求曲线
在
处的切线方程;
(2)若
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c2eac2ca815b49d08974e3811d62b56.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8fab1ef156db1dc2384dff7f9b9e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2023-05-01更新
|
723次组卷
|
4卷引用:云南省楚雄彝族自治州民族中学2022-2023学年高二下学期6月月考数学试题
云南省楚雄彝族自治州民族中学2022-2023学年高二下学期6月月考数学试题(已下线)2023年高三数学(理)押题卷二海南省西南大学东方实验中学2023届高三模拟考试(5月押轴模拟)数学试题(已下线)重难点突破07 不等式恒成立问题(十大题型)-2
解题方法
6 . 已知函数
(其中e为自然对数的底数),且曲线
在
处的切线方程为
.
(1)求实数m,n的值;
(2)证明:对任意的
,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd36dd386c17371d9ba4ab63c96d066e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f1d8d5cea065075fe50706abe3ae802.png)
(1)求实数m,n的值;
(2)证明:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02ad8fa9c76a0e7e2034dbadfbcbcc61.png)
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4卷引用:云南省楚雄州2022-2023学年高二下学期期中教育学业质量监测数学试题
名校
7 . 已知函数
.
(1)求函数
的单调区间;
(2)设函数
有两个零点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d255cf2d0ab252b88c54639ccbcf800.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147646cd9e3edaf051ee2acdf6737c33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ca13a93b5f401c0d39ba52b0cffcb0.png)
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2023-04-18更新
|
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2卷引用:云南省红河州开远市第一中学校2022-2023学年高二下学期5月月考数学试题
名校
解题方法
8 . 已知
,
是自然对数的底数,函数
.
(1)若
,求函数
的极值;
(2)是否存在实数m,
,都有
?若存在,求m的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c9f96083354eeb3329c6bf2ced2f0ee.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60322cfa3593efc7ee054e48677ed81a.png)
(2)是否存在实数m,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fad1dd76d5b72f10f5bb62693a2996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
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|
1069次组卷
|
4卷引用:云南省2023届高三第二次高中毕业生复习统一检测数学试题
名校
9 . 设
.
(1)求
的单调性,并求
在
处的切线方程;
(2)若
在
上恒成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eeb77b1d51f2058f1c5d778fb35f2c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bd58cb9b046128175eb264a6888b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4921923069c4f38a0af1ff8637e35b3c.png)
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2023-04-01更新
|
1358次组卷
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4卷引用:云南省昆明市第三中学2023届高三下学期数学高考适应性课堂测试题
10 . 已知函数
.
(1)当
时,求
的最值;
(2)当
时,
恒成立.求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6c64e58f1bd5a0d7bc15cdf59fc1fba.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46810b49fe55d60aaf8dd596f7cec20f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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