设集合
,
,
.求:
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afea7595bffc77585b66a16337ffba93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61241dcbf7b8710b40fac16129710bb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd7347ac9829f3c532e2542bef4edcff.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7026b721caf58b61b1daac10d7db2b.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5207a956f783588ad0f1df179de2dc46.png)
20-21高二下·河北·阶段练习 查看更多[2]
更新时间:2022-04-18 17:11:46
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解题方法
【推荐1】已知集合
.
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(1)求C;
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【推荐2】已知
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(1)若
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7a35dd642961b4e7e46f245f2e77a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3448f9eeb94d471b469fb3bfa1b012e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca208a68dd37e00903085736eafdedb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9682ecfd0d8b9b413e2b5b4b1e7d5f79.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6833b91adaea892664f8c773d5922b5f.png)
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(0.85)
【推荐1】已知函数
的定义域为集合
,集合![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/31db311e0a9a434191c85e02a76c1f30.png)
(I)求集合![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/b7f3503a1c854a66af30a7f2a3fa1435.png)
(II)若全集
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![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/11b46b7c391641e58a777dc44f4cb1a2.png)
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/b7f3503a1c854a66af30a7f2a3fa1435.png)
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/31db311e0a9a434191c85e02a76c1f30.png)
(I)求集合
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/b7f3503a1c854a66af30a7f2a3fa1435.png)
(II)若全集
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/55ab8ffd8d52429e8bae696e36b62fc6.png)
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/42257b235b7b475886c0fdfbfb9e50c4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/20/1573161921454080/1573161927303168/STEM/2f7b3059470643dda43beeb8afe30fe4.png)
您最近一年使用:0次
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【推荐2】设集合
,
,
.
(1)求集合
,
;
(2)求集合
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1cf93e465bcf3dd3040ed72119cc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add3965380458db48376c85b6ab74d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3075b7e13157fd68b8898973874370.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ee569a8ff677073ef2b7aaac3ce69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9795cfcb301e51b2f628ff95d7c85c4.png)
(2)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b9e46d503f181550fa43e3cd390188d.png)
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