用区间表示下列集合:
(1)
;
(2)不等式
的所有解组成的集合.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61e2e30c346105ce3dfbe4bed7bc96cd.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bf8bf6d8104faffc357949b7e0a80de.png)
更新时间:2021-12-25 22:18:04
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【推荐2】用区间表示下列集合:
(1)
;
(2)
;
(3)
;
(4)
;
(5)
;
(6)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04da6a646bc93fabc67182e3dc50fa80.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773578b74068d20ad559ee2b26b72dac.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b724deadc831376e46f40dc9833cc08.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e3675b91a7bdeed64e0d5b7aab2e617.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfdd080a3e01c88b9c4e62d49f24be5.png)
(6)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac2114fe5cd9d1d4b3060b407cd4dec.png)
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