名校
解题方法
1 . 已知集合
,若
,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e374ecf280ca5cbe06f9ba1decfe4118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2 . 满足
的集合
的个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7155e16c9f4273f7b29ff661b8e31d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2023-11-03更新
|
250次组卷
|
2卷引用:四川省凉山州西昌市2022-2023学年高一上学期期中考试数学试题
名校
解题方法
3 .
,
,
,则实数a的取值集合是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e15d307b3b8a0c5c157f074c2178867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a306c53df2ca7ff7b98d0e881f8ca86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
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4 . 已知集合
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94845e884e2a6f8196c10ebee9ed7c4e.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345fcc0218da13686109f3c5a20547f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94845e884e2a6f8196c10ebee9ed7c4e.png)
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5 . 已知集合M满足
,则满足条件的集合M的个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/409e93e631758aa65a8acc99a8badc31.png)
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名校
解题方法
6 . 已知集合
,且
,则实数
所取到的值构成的集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f02a9fb950c6225c1ca47a3a6cfcb645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9afa6ca3c54f758947c5ece1a2e71b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
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名校
7 . 集合
,则集合
的子集有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc618e67a008cbb083e3399dc67c3926.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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解题方法
8 . 已知集合
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740d6c71fa0a3208509156d0380a1e58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
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9 . 对于非空数集
,其所有元素的算术平均数记为
,即
.若非空数集
满足下列两个条件:①
;②
,则称
为
的一个 “保均值子集”.据此,集合
的“保均值子集”有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0301205056347f8805afc623a3eb9980.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d38f6a84cda99af5f20587d6f34c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517ec0b75a52a5f895d6883e86a8f90d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2341824ad6dd96a5321adbac177ee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b07a67307d5d4627efa688b30e5573.png)
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10 . 若集合
,
,集合C是A的子集,且
.这样的子集C有______ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6e6405e2ecdfca6d442c5dc1c2f86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0945b9f47f37e913573a970c9c0f66e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388a72c5dd8120ef89c28a4cf489fe5b.png)
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