名校
解题方法
1 . 已知不等式
恒成立,则实数a的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5aa8cddcd35cdfc54d2f226c53a840f.png)
您最近一年使用:0次
2024-06-05更新
|
412次组卷
|
3卷引用:江苏省海门中学2023-2024学年高二下学期5月学情调研数学试卷
名校
解题方法
2 . 已知函数
.(其中
为自然对数的底数)
(1)当
时,求函数
在
处的切线方程;
(2)当
时,若函数
在
上的最小值为
,求实数
的值;
(3)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c004d5bc2d56549c58d10a2fd6ba7a44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab625f9a61f620b0c59920729c52c37.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cd50020c0e3198d4a6b2d26a413b1b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44986287ed599f86a23cfffe788cc76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a003d68d6b622541aa713b06f0dbef4f.png)
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3 . 已知关于
的不等式
对任意
恒成立,则实数
的取值范围是___________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af34fa130c976150970d9da1bb21b56f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e95ab6ce2369fa5338d1fa5589bfbc96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
4 . 已知函数
.
(1)当
时,求
的单调区间;
(2)当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1996957bc581e5d03c0f733233e9956.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b269c11e6f9dbbf1a1efcda572f13ea8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c8abdaf1a883ca6d2fed14f8341696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 已知一个顶点为
,底面中心为
的圆锥的体积为
,该圆锥的顶点
和底面圆周均在球
上.若圆锥的高为3,则球
的半径为______ ;球
的体积的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e95a79288fcb7e47fba4410722e2bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
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6 . 已知函数
.
(1)若
,讨论
的单调性;
(2)已知存在
,使得
在
上恒成立,若方程
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb128a52a0a93940f221fabfb2a82a3.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)已知存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3908e4a8e8675114473bb3a831181c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3abba38c8677fc7664d819a070e4e5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64de2eae60fea94a70dbad2dc7c4df13.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
7 . 已知函数
.
(1)讨论
的最值;
(2)若
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bce4916bbf635e43a9db05f90921fdc.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886517188fdd3c35e7f1a1388b667e87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2024-05-14更新
|
1136次组卷
|
4卷引用:江苏省无锡市辅仁高级中学2024届高三下学期高考前适应性练习数学试题
8 . 若关于
的方程
有4个不同的实数解,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176ce7f2b75a8ee5a6649b6c80bd0d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
9 . 已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae6bc3476b9f7bede141d0010349449.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-05-13更新
|
1360次组卷
|
3卷引用:江苏省南通、扬州、泰州七市2024届高三第三次调研测试数学试题
名校
解题方法
10 . 设
,不等式
在
上恒成立,则
的最小值_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9987ebce8e81275f1ee4946bb7210bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e6b477c7e1e73a21cb2fceea1a9c32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99f68c6ed09e483db6edf0b4caf5e252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92321bffebb3767564f39e238fa186ec.png)
您最近一年使用:0次