已知全集
,且集合
,
.求:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e27e97b9bf5e77356ec26594c084a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33a66795c534f1847e3370e6c42c61c1.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0408a44fd7c73db8cc1fe8ea88474bc5.png)
更新时间:2021-11-09 12:05:11
|
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】已知集合
,
.
(1)当m=3时,求集合
,
;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a6cc4bb1dfc9d4f4fe2b2c8b54e9a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65568c36ecb25159065c4fb574f57524.png)
(1)当m=3时,求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433815478272/1572433821392896/STEM/259e5b4c23b64fec8b9ef7ac6f7361b5.png?resizew=41)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐1】设全集
,集合
,集合
.
(1)求集合
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3313aa2b9aa7b69e1b07492b04f5d0f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/729794e6b6b7ebf5554d10f5b692ee65.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7817b055b567e64ea8914a5d6e9b45d.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd53a79a58c7e7ec09b426d2a20fef9.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐1】已知集合
,
.
(1)当
时,求
和
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc30d5cd5242a4cfa295536540bc20ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bab3b2530df16491a1b1a364e7502219.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfb17a2a90cd479b604258d1258e9636.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
解题方法
【推荐2】已知全集为
,集合
,
.
(1)若
,求实数a的取值范围;
(2)从下面所给的三个条件中选择一个,说明它是
的什么条件(充分必要性).
①
;②
;③
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0dee8f9e35c77c44919ea7f19ab295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e8981fd27ff32d785c14577282a018c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71f62a3955d74c69bd1a6fb28327c04.png)
(2)从下面所给的三个条件中选择一个,说明它是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71f62a3955d74c69bd1a6fb28327c04.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c472a43ab5144170b0767dbf5417a7c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee66d2ea4fe52f7ef6ea38844002b50f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ef16eac5472e9c9761280e4ef9e9626.png)
您最近一年使用:0次