已知非空集合
,
.
(1)若
,求
;
(2)若“
”是“
”的既不充分也不必要条件,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99bb38d9134047aa243f68859d118ce2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4761bec558fb18cae135a44f07935257.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361048fd1b1a7f3b7230404a04b7155a.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
23-24高一上·云南曲靖·期中 查看更多[2]
更新时间:2023-12-20 14:09:04
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知M={小于10的正整数},A⊆M,B⊆M,且(∁MA)∩B={1,8},A∩B={2,3},(∁MA)∩(∁MB)={4,6,9}.
![](https://img.xkw.com/dksih/QBM/2021/10/22/2834614199107584/2835043424796672/STEM/5541cd7d-3139-4c29-9558-833d88478f32.png?resizew=212)
(1)补全Venn图,并写出集合A∪B.
(2)若S⊆A,T⊆B,直接写出集合S∩T
(3)求(∁RM)∪[∁Z(A∩B)].(其中R为实数集,Z为整数集)
![](https://img.xkw.com/dksih/QBM/2021/10/22/2834614199107584/2835043424796672/STEM/5541cd7d-3139-4c29-9558-833d88478f32.png?resizew=212)
(1)补全Venn图,并写出集合A∪B.
(2)若S⊆A,T⊆B,直接写出集合S∩T
(3)求(∁RM)∪[∁Z(A∩B)].(其中R为实数集,Z为整数集)
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适中
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【推荐2】已知集合
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bb5f1be70471efa77e9f2ad7815d94.png)
(1)当
时,求
,
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f78e94975ec34bfc5b13d45e785d8a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9bb5f1be70471efa77e9f2ad7815d94.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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适中
(0.65)
【推荐1】已知
:方程
有两个不相等的负根;
方程
没有实数根.设
是真命题且
是假命题,
是假命题且
是真命题.用子集与推出关系来判断
是
的什么条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bcb4df710cf7fc5a4159380ae5451e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c93fbc3aa276edc226a50c5fb672880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5357e41a75c50243d65d44d27299d628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/404110d5a678a5dca9bf6740421c61b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知全集为
,
,
.
(1)若
,求
;
(2)从下面所给的两个条件中选择一个,并说明它是
的什么条件?(只需说明充分必要性,无需证明).
①
;②
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98381333cd218da5975174dd46d591c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6691f9837cce1e479fd00a76b6261ceb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c5b42eff92a712d1e0680381057c5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c6009ab1bad0e053bc7e11b868cac6.png)
(2)从下面所给的两个条件中选择一个,并说明它是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0a449d63a95d65693abdb1cd5fdae6b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2113f090a95bbdc56ed41d91d4e1dadb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/300c016277f44d2863c657e00985c168.png)
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