1 . 已知
.
(1)讨论
的单调性;
(2)确定方程
的实根个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0edbe9d245a5b56a242ce68ca92b9f3.png)
(1)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)确定方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda75618626299258f126d0c448e3df2.png)
您最近一年使用:0次
2 . 已知函数
,
.
(1)当
时,求证:
在
上单调递减;
(2)当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19873e80bd50cc9c3c67654f82273279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b63cf279405d3c5a3b1c293acaa522a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636289ad84b4a3a51095dd32ca201f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef849152f5509a13bdb8c2d5b0694c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
3 . 已知
是定义在
上的函数,且
,若对任意
,不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7123c6cfb2e8f808ce82a366015c1fb5.png)
恒成立,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e381d114c348d9bc3dd4063864463796.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7123c6cfb2e8f808ce82a366015c1fb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b2a50a9e79d6fa37f2534339e39c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
4 . 已知函数
.
(1)求证:函数
在
上单调递增;
(2)当
时,
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91357477ed7884b84447959b02d84f39.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0ad25f238f99cc594c761adc4294051.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40eb06542bd2b7e4609e8417e2efd62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e220710db5ca299f9f448d953ccf471d.png)
您最近一年使用:0次
解题方法
5 . 已知函数
.
(1)求证:函数
在
上单调递增;
(2)当
时,
恒成立,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09af3dcb914652e17d4a97fc3964f16d.png)
(1)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/650aad765c54c2b206ea9457c5f30c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54bff0ddda63d73775cc77136807929.png)
您最近一年使用:0次
2023-03-21更新
|
498次组卷
|
4卷引用:贵州省毕节市2023届高三诊断性考试(二)数学(文)试题
贵州省毕节市2023届高三诊断性考试(二)数学(文)试题甘肃省张掖市2023届高三下学期4月联考数学(文)试题(已下线)专题04函数与导数(解答题)(已下线)2023年高考全国甲卷数学(文)真题变式题16-20
解题方法
6 . 已知函数
.
(1)求曲线
在
处的切线l的方程,并证明除了切点以外,曲线
都在直线l的上方;
(2)当
时,证明不等式
,在
上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347c62b44fae618a37c145b3b5d1f1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab71d30849cda6d5c00a0e00d1b7900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba90ba6bac731b70b64d65b33a83c8fa.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
(1)求曲线
在
处的切线
的方程,并证明除了切点以外,曲线
都在直线
的上方;
(2)若不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab71d30849cda6d5c00a0e00d1b7900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba90ba6bac731b70b64d65b33a83c8fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-03-14更新
|
352次组卷
|
2卷引用:贵州省六校联盟2023届高三下学期适应性考试(三)数学(理)试题
8 . 已知函数
.
(1)若
,求
的极值;
(2)若
是
的两个零点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec94a777e5f62833727151ea6bb21424.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f22fec5a381ae8aca93d876e54c79de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a19a80063c7bcb52362a94bf389e1b99.png)
您最近一年使用:0次
2023-03-11更新
|
1178次组卷
|
8卷引用:贵州省黔东南州2023届高三第一次适应性考试数学(理)试题
9 . 函数
.
(1)当
时,求函数
的单调区间;
(2)若过原点O可作三条直线与
的图像相切,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b920b3f34fa94bbbd4fc489fcbfb6767.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若过原点O可作三条直线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2023-02-19更新
|
637次组卷
|
3卷引用:贵州省贵阳市2023届高三下学期适应性考试(一)数学(文)试题
名校
解题方法
10 . 已知函数
,
.
(1)当
时,求函数
的极值;
(2)若任意
且
,都有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c75f825389f59d3406d75811bf4b2e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99af472192df02e555d214a46a72d460.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d3a8a14009ec9c2a32b92a6a4343a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/221b0e04a6a4d7f805244f919809f25d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-19更新
|
838次组卷
|
8卷引用:贵阳省铜仁市2023届高三下学期适应性考试(一)数学(理)试题