名校
1 . 设函数
,其中
,且
.
(1)当
时,求
的单调区间;
(2)若
是
的极值点,且对任意
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53ec5dc1bc339a538ba83a4059d9d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf6506e9de40da0f3c51b81b35a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b650820d7bed48ed67a2869ad8c65ff1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3d07f9b89b24792b5e5cc639b399ced.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055c5804cef42a8918ef6431830c3525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-07-09更新
|
487次组卷
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2卷引用:安徽省名校2020-2021学年高二下学期阶段性大联考文科数学试题
名校
解题方法
2 . 已知函数
,
.
(1)若函数
在
上单调递增,求实数
的取值范围;
(2)若函数
的图象在点
处的切线平行于
轴,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f78e6ee8bc80d5112b1d414aff629f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4d9fa00782e6ae4726ed3bf68b75c2.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c21e62571c3ecccac71d038cc456a6.png)
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2021-07-09更新
|
294次组卷
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5卷引用:安徽省六安市舒城中学、安庆市太湖中学2020-2021学年高二下学期期中联考文科数学试题
名校
解题方法
3 . 已知函数
,
,其中
是自然对数的底数.
(1)求函数
在区间
上的最小值;
(2)求证:对任意
,
,都有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7601f3fbac3187f1b10e59ad6eecddb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b184f35cbf07d2648851d0de43a09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2cadaa6b2314002bacf77e04c1b53c.png)
(2)求证:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f400061962600b729a239dd2b43abd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/362b8505c76739ace94f4c886ed52e8e.png)
您最近一年使用:0次
2021-07-09更新
|
191次组卷
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6卷引用:安徽省六安市舒城中学、安庆市太湖中学2020-2021学年高二下学期期中联考理科数学试题
4 . 已知函数
,其中
为自然对数的底数,
……,则
的零点个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fdb403c46295feda3845b3eef2b378.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ea084bd9a7d0fbb2fb14c7d6e3866a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
A.0 | B.1 | C.2 | D.3 |
您最近一年使用:0次
2021-07-09更新
|
253次组卷
|
6卷引用:安徽省六安市舒城中学、安庆市太湖中学2020-2021学年高二下学期期中联考文科数学试题
解题方法
5 . 设函数
.
(1)若函数
,求
在
上的最值;
(2)当
时,若不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7e7a30d274db960de765b8b4a037e9.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c765461ae1a6c70f5cbdcb6c932a22b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1417a39c99b1e6b489c7c033a0625af.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/115a70e419b6d2bcefb94b612016d92d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
6 . 已知函数
,若对任意实数
,直线
与
有且仅有一个公共点,则实数
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2eadc59f78e9734b4ebd100a32d519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15fb18163df0690365a0d2e7ee88f5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解题方法
7 . 已知函数
,
.
(1)求函数
的极值;
(2)令
.证明:当
时,
在
上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f1e2bb8b5a192e25795c5c99eb5eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d49ec515fb1fdc93ca4dda443326ad5.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ffcdf84c6476c0d046035d49d423287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46763fe66355c813d79154260e08cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3485a6e16799fbeeda320f7f3e8db329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d49ec515fb1fdc93ca4dda443326ad5.png)
您最近一年使用:0次
8 . 已知函数
,关于x的方程
有3个相异的实数根,则a的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d0f3f71341c5dc9bd727f3fd45ea4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a515a39a8226245fa1a7a6ae63f86b2b.png)
您最近一年使用:0次
名校
9 . 已知函数
(
是自然对数)在定义域
上有三个零点,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d036c9a16b737f6164679925b95a3c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-06-23更新
|
572次组卷
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2卷引用:安徽省亳州市第二中学2020-2021学年高二下学期期末理科数学试题
10 . 已知函数
.
(1)令
讨论函数
的单调性;
(2)求证:对任意的正整数
,当
时,有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe97b2b7a53bc3696b7525b4618de13.png)
(1)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211ec21063231985cb49c3fe59b7e9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:对任意的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e241780ace3c6247dbc64b067be725d0.png)
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2021-06-18更新
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3卷引用:安徽省“皖南八校”2020-2021学年高二下学期联考理科数学试题