名校
解题方法
1 . 已知函数
.
(1)若
在
单调递增,求a的值;
(2)当
时,设函数
的最小值为
,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3795f5c38c120c35ec70c99795e22754.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fce155963060b2e5b9147a185897cc.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc9636c7defae4092be584630b795058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8bdb49d4cb59b0f4185dd8eb821194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51a162f93394e5639834ad417a69b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e51a162f93394e5639834ad417a69b31.png)
您最近一年使用:0次
2020-09-22更新
|
426次组卷
|
4卷引用:陕西师范大学附属中学、渭北中学等2022-2023学年高三上学期期初联考理科数学试题
2 . 已知函数
.
(1)求函数
的单调区间和最小值;
(2)若函数
在
上的最小值为
,求
的值;
(3)若
,且
对任意
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c7ed99a74e126a05cb520f19c094020.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b3f443bff8bce4297108737c3d67ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7754cc9374c8193dadb6875fb8a3fefb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/232d1ce3ad14256b1543e6007ff1675d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eecef4664509b96eb568177a619ba43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
3 . 已知函数
.
(1)讨论函数
的单调性;
(2)若对任意
,都有
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e2dc4fb2df4a7a5f81b40d01127ca7.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a99f1bc6895934a9e2a6d659383ded9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2018-03-06更新
|
1074次组卷
|
5卷引用:陕西省黄陵中学2017-2018学年高二(普通班)下学期开学考试数学(文)试题