设集合A=
,B=![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d40959218757e7cb2f9af21c334412a.png)
(1)若
,求
并列出它的所有子集;
(2)若A
B=A,求实数x的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e478b8761e2af50bc433981e8461e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d40959218757e7cb2f9af21c334412a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若A
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/321a57dd129e992d7834e91961987bd1.png)
更新时间:2021-10-28 16:33:06
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【推荐1】已知集合
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(1)分别求
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(2)已知集合
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解答题
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解题方法
【推荐2】已知集合
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86eabdf90fc33de4f230d73dc4a414e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6808dcde820eba418a18651abbf31b.png)
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您最近一年使用:0次
解答题-问答题
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较易
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【推荐3】已知集合
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(1)若
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(2)是否存在实数m,使x∈(A∩B)是x∈D的必要不充分条件?若存在,求出m的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abea463a4be6af00b65bdbe8be841d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10a7f2ae4a1c94f310a11d9ec8a97998.png)
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993785d7c91c30afc3f39958f7d92566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)是否存在实数m,使x∈(A∩B)是x∈D的必要不充分条件?若存在,求出m的取值范围;若不存在,请说明理由.
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