名校
解题方法
1 . 若
且
.
(1)判断函数
的单调性(不必证明);
(2)当
时,若
在
上恒成立,求实数a的取值范围;
(3)当
时,若函数
在区间
(其中
)上的值域为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388c55b4ffd094a596997953d95ec8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42bb28003d53334358dddcbb449ba0b9.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7403f01b62aaf6fc8f5fab5354d0d3a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63bedd412c3002fec7c158bcd02f644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
您最近一年使用:0次
2021-01-11更新
|
443次组卷
|
3卷引用:福建省漳州市第一中学2020-2021学年高一上学期第二次月考数学试题
解题方法
2 . 已知函数
.
(1)用定义证明
是偶函数;
(2)用定义证明
在
上是增函数;
(3)求函数
在
时的最大值与最小值.
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206313984/STEM/72be1595fa6d4fc682d45ef22b58e788.png)
(1)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894bb40d32426c7c52a5950842ba2d4e.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06386e59ea2d70abb5d5518346a5ef6.png)
您最近一年使用:0次