解题方法
1 . 已知函数
,
,对于下述四个结论:
①函数
的零点有三个;
②函数
关于
对称;
③函数
的最大值为2;
④函数
在
上单调递增.
其中所有正确结论的序号为:______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0736cd5be2b481ae33019b5f7679b5df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7de1a8934df5904663141f7d0faf20.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21acc53b7c713b175406ab315c16e55d.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87f4220178c2d9c8079672faee269098.png)
其中所有正确结论的序号为:
您最近一年使用:0次
2 . 对于函数
,若存在区间
,
,使得
,
,则称函数
为“同域函数”,区间
为函数
的一个“同城区间”.给出下列四个函数:
;②
;③
;④
.
存在“同域区间”的“同域函数”的序号是__________ .(请写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de992c982935cef2002b2c8104c00ad3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b0b703034e508086831b5008a22939b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5cb3641952a71fc4fcd82c5fb7e58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb73da207dea41fff108ae750e43ab8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6a3695649d3c9ead7a7233557e3b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267e6d77aabbebe52e7aca993368d874.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f294ed9d641d73656256d524359d3d42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c7082ad32db40f04008553b1d366b9.png)
存在“同域区间”的“同域函数”的序号是
您最近一年使用:0次
解题方法
3 . 定义在
上的函数
,若存在区间
,使函数
在
上的值域恰为
,则称函数
是
型函数.给出下列说法:①函数
不可能是
型函数;②若函数
(
)是1型函数,则
的最大值为
;③若函数
是3型函数,则
,
;④设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7089f485f3aeb24361811e5536740b2.png)
是
型函数,则
的最小值为
.其中正确的说法为________________ .(填入所有正确说法的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5313c921defe84689aefde4773ad2b56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aab24d046dd52838bff5d9bbd98305c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c60b2526f6219d0a6cb9c1acc9b7939.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0caa3a615699327816753132a064e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20849c00c47cbdc43f18d53341b6c4e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3351f77162c004c9c21ac24c42e0413e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfd09fb9482124fd35f19b86894648f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbf6506e9de40da0f3c51b81b35a901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7089f485f3aeb24361811e5536740b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d846af1bdadcb3897971d0b2f767e1f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3834d7ec7531f3c3c0ce9b286f7a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d86ab7c97cd8a0b15ba5efc1be94230.png)
您最近一年使用:0次