名校
解题方法
1 . 已知函数
.
(1)求
在区间
内的极大值;
(2)令函数
,当
时,证明:
在区间
内有且仅有两个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c56ec2258720b77cd82dc6510acc563b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
(2)令函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1582c12e318db71ef25098e6f8872655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79e9bca78d1e27e7a72b6125c796f57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d01dc2d99655cf7598837cb0886166ed.png)
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2023-01-16更新
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1254次组卷
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3卷引用:辽宁省名校联盟2023届高考模拟调研卷数学(三)
2 . 已知函数
(
).
(1)当
时,求曲线
在点
处的切线方程;
(2)若函数
有两个不同的零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bf4f4d5142fc0a4b3ffb2a9b324d0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d34be2ac9ece886667b1124bc57d655b.png)
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名校
3 . 已知函数
且
.
(1)设
,讨论
的单调性;
(2)若
且
存在三个零点
.
1)求实数
的取值范围;
2)设
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1f26cc366989b203c047e13db8de54d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47352a6ebe48c4d92e32275a4f32dc4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7803d86067299198e6d14b0c83947f58.png)
您最近一年使用:0次
2022-12-21更新
|
5089次组卷
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10卷引用:辽宁省辽东十一所重点高中联合教研体2024届高三高考适应性考试模拟数学试题
辽宁省辽东十一所重点高中联合教研体2024届高三高考适应性考试模拟数学试题广东省广州市2023届高三一模数学试题河北省衡水市第十三中学2023届高三上学期1月月考数学试题四川省南充高级中学2023届高考模拟检测(七)理科数学试题江苏省南通市海安高级中学2023届高三下学期一模数学试题江苏省盐城市亭湖高级中学2022-2023学年高三上学期期末数学试题江苏省连云港市赣榆智贤中学2023-2024学年高三上学期9月模拟考试数学试题天津市蓟州区第一中学2024届高三上学期第三次学情调研数学试题(已下线)(新高考新结构)2024年高考数学模拟卷(三)(已下线)专题3 导数与函数的零点(方程的根)【练】
解题方法
4 . 已知函数
,
(1)若
时,求证:函数
)只有一个零点;
(2)对
时,总有
恒成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868b6a84b8ba850245610435aa0bef2d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765a1076581eeaffdc124f1a1676c10e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8625151f40f341575c1a71992e485188.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9f5253e0770377a99d6e0ede768fc92.png)
您最近一年使用:0次
名校
解题方法
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea9bb195a844feb2f1806db8259604.png)
(1)当
时,证明:
.
(2)若
有两个零点
且
求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea9bb195a844feb2f1806db8259604.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090e25106827a537fe83b70f5468153b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
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2022-12-28更新
|
1382次组卷
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8卷引用:辽宁省锦州市渤海大学附属高级中学2022-2023学年高三上学期期末考试数学试题
名校
6 . 已知函数
(
自然对数的底数)有两个零点.
(1)求实数
的取值范围;
(2)若
的两个零点分别为
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e29195d6aa7d730230fab62b66c3a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dcd143a57a268a5a8ef486e2a4d5c0a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/c5aee4ae5e9dc576e565a899609c8159.png)
您最近一年使用:0次
名校
7 . 已知函数
,
.
(1)当
时,求
的单调区间;
(2)设
,当
,讨论
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3771394a9a6d244d3771c0d655b9ddee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c425b2d86ac3be46f021b48a8f4acc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d865171dbfb254ab01f80ff1ddf2daaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
名校
8 . 函数
和
有相同的最大值
,直线
与两曲线
和
恰好有三个交点,从左到右三个交点横坐标依次为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f7bc44601553dd5e49f2e599579db3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a8999865b50a6a1f4306c6ec8be5534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-26更新
|
1169次组卷
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5卷引用:辽宁省铁岭市昌图县第一高级中学2022-2023学年高二下学期6月月考数学试题
9 . 已知函数
,
.
(1)求函数
的单调区间;
(2)设
是
的两个零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f5d5d43593d141b2226358af8cfbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d231908d248108ae3ab2a39b41a71642.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55485873e1a6d55429e38357786ed6d6.png)
您最近一年使用:0次
10 . 已知函数
.
(1)讨论
的单调性;
(2)当a=1时,若函数
有两个零点,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80b12da3190983bf4095587a516a71.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当a=1时,若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a15f1a801c814f18a5918782cf40d0e.png)
您最近一年使用:0次
2022-11-19更新
|
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4卷引用:辽宁省县级重点高中联合体2022-2023学年高三上学期期中考试数学试题