解题方法
1 . 已知集合
,
.
(1)当
时,求
,
;
(2)求能使
成立的实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38624bcb431c21d685b36f6945a6a9c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be0bdb48726751db684f26abd7a625ec.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825793ebd4bb376a09621f163ac990a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求能使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 设全集
是三角形
,
是锐角三角形
,
是钝角三角形
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8bfa7931cabd1854c6cbd9e53b5d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca61cc2979afab1230957e8ee6cdd1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb27781e5afac219e3c2cb6038b718d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ca8bdc812627d925f00ed7c145d696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c093cbde3d3472d1f7f2b0dff2bc4881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7f860e8f0503c476eaf0bd73a71810.png)
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2023-10-07更新
|
29次组卷
|
3卷引用:北师大版(2019)必修第一册课本习题第一章1.3 集合的基本运算
3 . 已知集合
,
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95807f94cda5e0cbc9a125381950d75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b6ed8718b5ef85a091f2c816560a541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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2023-10-07更新
|
66次组卷
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3卷引用:北师大版(2019)必修第一册课本习题第一章1.3 集合的基本运算
4 . 已知集合
,
,
,求:
(1)
;
(2)
;
(3)
;
(4)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102cdb28a21e481c0fe8fbe99f16ec30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8fa84fe9e7f21f14863a4a1889a08fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c739676ab6561d37276134ab82727eab.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84fb0ca38afa0cfca57d09174210dd7.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ed13ad63c5d72766db586970e7306a.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be0a4924ac50a735d20bc47e4f19e99.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e867abeea228c0945dfc58be2eaca47.png)
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2023-10-07更新
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51次组卷
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3卷引用:北师大版(2019)必修第一册课本习题第一章1.3 集合的基本运算
5 . 已知集合
,
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61241dcbf7b8710b40fac16129710bb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccac6bd413766d012bc368b0b48a8776.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
您最近一年使用:0次
2023-10-07更新
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68次组卷
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3卷引用:北师大版(2019)必修第一册课本习题第一章1.3 集合的基本运算
6 . 设
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e47ae2d8930aa1fa02d52785b4517f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdb3dab1721ebc8329bd2ac4000be6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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7 . 求下列集合的并集:
(1)
,
;
(2)
,
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f88506628ea3a6dbf27ce97bf87442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b5fd68b43a19d5932eaeb525a70110.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ed54e6f925630492cb446ac78cb5bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714126aeb68ea8255c97c08c0d4a1393.png)
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8 . 已知
,
,求
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc51474b54120493b300a14e566cbc0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2e11ad297abc99c544ed50472e2493a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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2卷引用:苏教版(2019)必修第一册课本例题1.3交集、并集
9 . 设
,
,求
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b5c349655fc035b45cc93120b6dd3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647f51fb6db618b0e3c5ff14a4f27a0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
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10 . 如果集合A,B分别满足下列等式,试写出A与B之间的关系:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
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