1 . 已知函数
,
.
(1)若
,讨论函数
的单调性;
(2)若
,求证:对
,
恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8badd8d5261c152d8e10729ec1e01e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若
![](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/e5c0a8155f5a6af42d37856f6c95a0bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ccb692a97ea01b9847bb3401f8a6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf66bd9af950ea30b966d5a90e95c9a.png)
您最近一年使用:0次
2 . 已知函数
,
.
(1)当
时,证明:
在
上恒成立;
(2)当
时,求
在
内的零点个数..
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e857e44e72853591a33cddb95ce51fc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55351494cd96fed31976fdc5d9c7292.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef5cec7aa1e307f4282544cdfb47aed3.png)
您最近一年使用:0次
2023-09-10更新
|
380次组卷
|
3卷引用:陕西省咸阳市永寿县中学2023-2024学年高三上学期调研模拟测试理科数学试卷
陕西省咸阳市永寿县中学2023-2024学年高三上学期调研模拟测试理科数学试卷河北省保定市重点高中2024届高三上学期开学数学试题(已下线)考点19 导数的应用--函数零点问题 2024届高考数学考点总动员【练】
3 . 已知函数
.
(1)若曲线
过点
,求曲线
在点
处的切线方程;
(2)设
,证明:当
时,
有两个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb22a29427ddf1b801284a53b65a495.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6951479694aec937a712901634a5a4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e031a5b1a9c37a51309e4d01e7d99a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
4 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)(ⅰ)若对于任意
,都有
,求实数
的取值范围;
(ⅱ)设
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/666d7a2f65ef947fd349ad36c48150f6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)(ⅰ)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a3be5e468089b7ebb31ef39ca911798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f13cb28f745af51c1baaa352e8da38d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e156bd36aef172cb4e6360638aac4de6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9491c984a8d44bd6ce73ec490b2dc406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fef2385ff37d27395b0e9a1b0cea808.png)
您最近一年使用:0次
5 . 已知函数
.
(1)讨论
的单调性;
(2)若
的两个极值点分别为
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a285b69ac39ac359db1af064423d9c3b.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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9707580fbd7e2f1359af2a64c7e4f71c.png)
您最近一年使用:0次
2023-08-30更新
|
246次组卷
|
3卷引用:陕西省商洛市2024届高三上学期尖子生学情诊断考试数学(文科)试题
名校
6 . 已知函数
.
(1)讨论
的单调性;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70566518997abd6bf0afabe06807b785.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c11cf3ca4a89057b9e7a11be36ac7bed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b8da5de0594db80f92dfcbe857b537.png)
您最近一年使用:0次
2023-08-27更新
|
1049次组卷
|
5卷引用:陕西省2024届高三上学期第一次联考理科数学试题
陕西省2024届高三上学期第一次联考理科数学试题广东省部分学校2024届高三上学期8月第二次联考数学试题河南省洛阳市洛宁县第一高级中学2023-2024学年高三上学期第一次月考数学试题黑龙江省大庆市2024届高三第一次教学质量检测数学试题(已下线)考点20 导数的应用--不等式问题 2024届高考数学考点总动员【练】
7 . 已知
,
,设函数
,其中
为自然对数的底数,
.
(1)当
时,证明:函数
在
上单调递增;
(2)若对任意正实数
,函数
均有三个零点,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87b675de7832123ecef7c62c41b75868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45d6b39d2f63a4d5cc9b1e40c90ff6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/051b07f6c5ab13a5df7607ef22850b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(2)若对任意正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
,
.
(1)若
恒成立,求
的取值范围;
(2)设正实数
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31653b694d425c914bd6d0242014bc93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa7670449b27702bf62d251c6bed5d05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b5890bd5a8fe2650ffbdda74c2ce65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcce89b0004d6a21cb188e71abb965c5.png)
您最近一年使用:0次
2024-01-03更新
|
349次组卷
|
4卷引用:陕西省部分学校2023-2024学年高三上学期阶段性测试(四)理科数学试题
名校
解题方法
9 . 已知函数
.
(1)当
时,证明:
;
(2)若关于
的不等式
恒成立,求整数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3afbc5bc72f59c051190c9f85854691e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2e0bb6d63b7bcaee92a470d58cc399.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d66764c9a68b01177781c1061f4901a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-08-02更新
|
1084次组卷
|
9卷引用:陕西省渭南市三贤中学2024届高三下学期名校学术联盟高考模拟信息卷押题卷文科数学试题(一)
陕西省渭南市三贤中学2024届高三下学期名校学术联盟高考模拟信息卷押题卷文科数学试题(一)陕西省渭南市三贤中学2024届高三下学期名校学术联盟高考模拟信息卷押题卷理科数学试题(一)江西省九江市2022-2023学年高二下学期期末调研测试数学试题广东省揭阳市普宁国贤学校2024届高三上学期开学考试数学试题宁夏回族自治区银川一中2024届高三上学期第一次月考数学(文)试题(已下线)第六章 导数与不等式恒成立问题 专题八 单变量恒成立问题综合训练辽宁省沈阳市重点高中联合体2023-2024学年高三上学期11月期中检测数学试题河南省平顶山市鲁山县第一高级中学2023-2024学年高三上学期11月期阶段测试数学试题河南省焦作市第一中学2024届高三上学期9月月考数学试题
10 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若
,证明:
有且只有一个零点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2cb26c8b2ee4296797abb6a70c97fd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](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/28041c5e5949c193468e398cf814cbdf.png)
您最近一年使用:0次
2023-07-11更新
|
340次组卷
|
5卷引用:陕西省汉中市2022-2023学年高二下学期期末理科数学试题