名校
1 . 已知函数
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b46c734f7c5ad829b17b0928c2e08.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() ![]() |
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解题方法
2 . 已知函数
,
,
为自然对数底数.
(1)证明:当
时,
;
(2)若不等式
对任意的
恒成立,求整数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79bc0dd2bf343af8938d4ce15f5134a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55d2caa7446da913b76747bab136fcc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9b59d1e47d607ffbc41153a74f3f08.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66692ec49a458f9e48c7315d03dfc37b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
3 . 已知函数
,其导函数为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cfa45e7ce4825447b1f30b3b14e20ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
A.曲线![]() ![]() ![]() |
B.![]() |
C.使得![]() ![]() |
D.![]() ![]() ![]() |
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解题方法
4 . 设函数
.
(1)讨论函数
的单调区间;
(2)若对任意
,函数
均有2个零点,求
的取值范围;
(3)设
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44043d437f4dbeef2c977d41af8a1cbd.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若对任意
![](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/2c94bb12cee76221e13f9ef955b0aab1.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2514db2de125390f82b1604143d0827c.png)
您最近一年使用:0次
名校
5 . 已知
是方程
的两个实根,且
.
(1)求实数
的取值范围;
(2)已知
,
,若存在正实数
,使得
成立,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37674da31fc7bffe11c6b45f52cd2bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e9ecfdf2ec90ea96e104158aec81c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3f8115a9459a4a386008c2b8d56de1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd5b2efe2aafa920ecb259f276e2d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4d89f6c10871a7b3475c00801f608d.png)
您最近一年使用:0次
2023-05-26更新
|
1405次组卷
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6卷引用:浙江省杭州第二中学等四校2023届高三下学期5月高考模拟数学试题
浙江省杭州第二中学等四校2023届高三下学期5月高考模拟数学试题 湖南省长沙市第一中学2022-2023学年高二下学期第三次阶段性测试数学试题重庆市万州第二高级中学2024届高三上学期8月月考数学试题2023届浙江省四校联盟高三下学期数学模拟试卷(已下线)第九章 导数与三角函数的联袂 专题三 含三角函数的恒成立问题 微点3 三角函数的恒成立问题(三)(已下线)专题19 导数综合-2
2023·四川凉山·一模
6 . 已知
有两个零点
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c207efd83d75c1f69237d97616c726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca579894dad67bc82cb715fd48e0d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cb08970bc56eee3bc4ed2ed622c5c13.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
解题方法
7 . 已知函数
,记
.
(1)当
时,求函数
的最小值;
(2)若函数
有三个零点
,且
.
①求
的取值范围;
②证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a52da3c12cdf18c6fb5ce8a9da75b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a024eb03d7ffb3b510d1a131af3576bf.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b8ec9d4206ea66a02de5c4a1e1e911.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1310a7a80d1f8751a3f8cafe7f8c8b4.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57514ce816c30fa1d75f5b7e901ae499.png)
您最近一年使用:0次
解题方法
8 . 已知函数
,其中
是自然对数的底数.
(1)若
在
与
处的切线斜率互为相反数,求
的值;
(2)设
存在极值点
.
(i)证明:
;
(ii)设
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa8ae4cd4215fc3bb0b85c5755d9d66e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff5a8f648d375cc6ccf6649cab698c6.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89f4eff3125c5e63a994ba1ad5be58e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7152aea5d046953a8c931571be7c529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c1b76f4a0c9de082c7b4eb9dd99877e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015740ce0b7022cf0a5503747c020999.png)
(i)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9afdd7fee822c2fbefa20e734e8c8f.png)
(ii)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f42fac6e4c5c1b5834bca8f1e8163b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b108b585232548fafccf035e39047373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数
.
(1)是否存在实数
使得
在
上有唯一最小值
,如果存在,求出
的值;如果不存在,请说明理由;
(2)已知函数
有两个不同的零点,记
的两个零点是
,
.
①求证:
;
②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c565eed01da8f81dcb33909bd65d16f1.png)
(1)是否存在实数
![](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/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf5343910f9d9bf80726643a4618ea15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知函数
![](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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd888afdcfdb3e91a157d50f65e915e.png)
①求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76960fb39a0b6e2ba3f77f139c06bcf4.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee900dbbf7e47bd9a86c1c757f0f3f0e.png)
您最近一年使用:0次
2022-10-11更新
|
944次组卷
|
4卷引用:浙江省杭州第二中学2022-2023学年高三上学期第二次月考数学试题
名校
解题方法
10 . 已知函数
.
(1)若
时,恒有
,求a的取值范围;
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2800ac4afe3555ab93051be5840bc1a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/805eb275b8a7104797fd6df6713a646d.png)
您最近一年使用:0次
2022-10-01更新
|
1082次组卷
|
3卷引用:浙江省C8名校协作体2022-2023学年高三上学期第一次联考数学试题