1 . 设函数
则满足
的x的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da3d88a8cf46590db308522f4d128377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996596d62627949b9807fd7a226d2e5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知函数
是定义域为R的可导函数,若
,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee0b94eef7875086f8aff56d4e1de81e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a1d88f08209350ff227f0f4ddba626b.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
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解题方法
3 . 已知函数
.
(1)若
恒成立,求a的取值范围;
(2)当
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f732e2a644b6c0fc9741868d3721fd7b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a600d7d8138a9179410797b0cb24810.png)
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2024-04-10更新
|
1601次组卷
|
3卷引用:辽宁省大连市2024届高三下学期第一次模拟考试数学试卷
名校
解题方法
4 . 已知递增等比数列
的公比为
,且满足
,下列情况可能正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41284f57f8e9b14be1c72d63f4d5518e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023·全国·模拟预测
名校
5 . 已知函数
,若
对于
恒成立,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f891aa5085a14034f792d741e70e443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb5140d9bfefa0fc1f6d428ff5c2b485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
6 . 已知
、
,满足
,
,写出
的大小关系______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f0d7af1dd8c36e104edee9c0e4ad6b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52306a7300d3ffea177ca2d9e17036c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdf5dc170a4de71597fab874041a08b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e337a6e7dd57b1ecb2a59b2b44af362c.png)
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7 . 设
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a199e69c69cff9d871875ec7468d3303.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce2f58d7b0a7d0b6011eeb7672b2b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b848d49d0e7da48a087042d41f7a3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-05-08更新
|
817次组卷
|
3卷引用:辽宁省大连育明高级中学2022-2023学年高三下学期一模数学试题
解题方法
8 . (1)非零实数
,满足:
.证明不等式:
.
(2)证明不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b88e53e6ca674b4cb92ba78dddf989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3845ee677d2f270cbef4f380651a7e92.png)
(2)证明不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7401aa435bfc64fee5881fc600e5a821.png)
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9 . 已知函数
,
是
的导函数,且
.
(1)求实数
的值,并证明函数
在
处取得极值;
(2)证明
在每一个区间
都有唯一零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bd2cb50e32b7dd952b7b8931fd140a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae17aeafc0a40b66bf6f65db99c237e.png)
(1)求实数
![](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/bb45f673c56a289ea78831c9237e8d20.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb0413e82c996ae83b2f8e6440dc4e4.png)
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2023-04-13更新
|
1669次组卷
|
4卷引用:辽宁省大连市2023届高三一模数学试题
2023高三·全国·专题练习
10 . 已知
,函数
有两个零点,记为
,
.
(1)证明:
.
(2)对于
,若存在
,使得
,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77c11afffab5df60260229a316d3636.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfb340643ba3a6a3d0434af88044700a.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc043d78e4c9ad2281754d6c1cac8791.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eedf333393bdf56f8b428e9a7d2eb3de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14622c24cbfdc02c762f5d7ae4ae20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267572d2dff2dc38cf9251b7f33a3e61.png)
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2023-03-27更新
|
2669次组卷
|
7卷引用:辽宁省大连市第二十四中学2023届高三第六次模拟考试数学试卷
辽宁省大连市第二十四中学2023届高三第六次模拟考试数学试卷湖北省十一校2023届高三下学期第二次联考数学试题(已下线)第二篇 函数与导数专题2 中值定理 微点1 中值定理(已下线)押新高考第22题 导数综合解答题专题07导数及其应用(解答题)(已下线)模块四 专题2:导数大题分类练 (拔高卷)安徽省芜湖市第一中学2022-2023学年高三下学期4月统测数学试卷