设集合
,
.
(1)若
,求实数
的值;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0298edb69a6f54c0d180fc3bcf407aa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c15ad6e739fe549b10f7447d12380cc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc992c9e51d4b22232adf6bb5c8055a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-10-15 08:22:32
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知三个集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7171d277fc6375a836cfd1b3accdc5f.png)
.
(1)求
;
(2)已知
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7171d277fc6375a836cfd1b3accdc5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/873e41276a6df58727f239566a21490c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29cd450d0feaea9acb27a60430f4a3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521c8f3f084af427ec1c464f8b6bed86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知集合
,集合
.分别根据下列条件求实数
的取值范围.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbe06c5fec138ea16d554839caec51ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce16f623a89f2039bdb6f553b139369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4563d84dea9df685e59588cf04d9d67.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐1】已知集合
,
,
.
(1)设全集为
,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c2dd44ec9ee73fe8132fd8ff921a50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ceeeb78e5a51f68bd19a163addd40b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/116715ae52b8eddfce56daa33354735e.png)
(1)设全集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab907894aec35b45d1520c8fbdc3c50d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89013d75ecbdf83b878730c797328460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】设全集为
,集合
或
,非空数集
.
(1)若
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;
(2)在①
;②
;③
这三个条件中任选一个作为已知条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fda9ba3566c31c31a54e2771191f244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5806497d3b5ec15d89eef8202d54d7a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3069d7328da0fa82399370a5932512d0.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a587610de8c0fcdb799c93a5188e5e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次