解题方法
1 . 已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870c406c542fcfa425c6b1a4cdadf197.png)
(1)若
,求
;
(2)若
是
的必要条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870c406c542fcfa425c6b1a4cdadf197.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9321649453ceea20f0fb991333602c0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-01-31更新
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121次组卷
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2卷引用:黑龙江省绥化市绥棱县第一中学2023-2024学年高一下学期开学数学试题