1 . 已知函数
.
①对于任意实数
,
为偶函数;
②对于任意实数
,
在
上单调递减,在
上单调递增;
③存在实数
,使得
有3个零点;
④存在实数
,使得关于
的不等式
的解集为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae70588c1c4c2f1b2228b97b67efe381.png)
.
所有正确命题的序号为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b23b12d4aa6dc7cd52b49c525d1157.png)
①对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9414348d57c7fc77dcfa8f0744cb0c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
③存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
④存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09cd36e34adca75f8aaa6e696440d8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae70588c1c4c2f1b2228b97b67efe381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
所有正确命题的序号为
您最近一年使用:0次
2022-05-30更新
|
818次组卷
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3卷引用:北京市东城区2022届高三下学期综合练习(三)数学试题