解题方法
1 . 已知集合
,
.
(1)若
,均有
,求实数
的取值范围;
(2)若
,设
,
,求证:
是
成立的必要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdd554d014590a23cfac06de3bda440.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac39d8afe38aca6b52b43641a274ea54.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd170c506a8ce70f550f5751ae016ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653bcf7b627c3b87fcb310732313d9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79df3000f987277819847391e0548c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba27566052abbb25340b6499ae3044a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7848c89302a41e9576530313fc3e61b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40961f2dcdf88ac84a8f739317b191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
您最近一年使用:0次
2022-11-24更新
|
238次组卷
|
5卷引用:河南省学校联盟2022-2023学年高一上学期期中联考数学A试题
解题方法
2 . 已知不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4367ab7009c4b3ecfb6262671e8204f2.png)
的解集为
,函数
的定义域为
.
(1)若
,求
的取值范围;
(2)证明函数
的图象关于原点对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4367ab7009c4b3ecfb6262671e8204f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6369ea989d998028ed1474f6645ec9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cdd872c3688b331e2b5c17b0f5a20b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d64eb9797ef10c5863b7594796ef459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cdd872c3688b331e2b5c17b0f5a20b4.png)
您最近一年使用:0次