集合
,
.
(1)求
、
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab9859118813cdfdeb21d32c1af67d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c75f9d760ac6943090cb118dbc8b9a4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2020-02-10 23:19:17
|
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解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知全集为
,集合
,
.
(1)若
,求集合
;
(2)请在①“
”是“
”的充分不必要条件,②若
,则
,③
,这三个条件中任选一个,补充在下面问题的横线上,并完成问题解答.若______,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25953f0b1e79e399b40e80e7ecbc093b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663854b5ccdb9de9666dee2ed6f8400a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd3c1cb06b3348c7671c93b6cf90e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720c70b864e776c1295978e769afd89d.png)
(2)请在①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6833b91adaea892664f8c773d5922b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b328da1c9c8cda093e67b83a503005c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72155300d2c231dbbaabfbdd2a122028.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
|
较易
(0.85)
解题方法
【推荐2】设集合
,
.
(1)求
,
;
(2)设集合
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30ff50f72683b9f8b6f3617b33fc4994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d67718dab86352f2ae4b7fb8ae6bdcf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feec5a532222d4d2a787ccdab25c7dcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5295fa100c081e47c5166eafe7373ada.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
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较易
(0.85)
名校
解题方法
【推荐1】设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3afb8f29acb7f85232ac748940618b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8ae3ceb3045eb5d0e9d226ba278359.png)
您最近一年使用:0次
解答题-问答题
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较易
(0.85)
名校
解题方法
【推荐2】已知函数
.
(1)若函数
在
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的值;
(2)若
,解不等式
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4969b70e8ba4fb5de2505215db4208.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348e599b432df07bb69281938e4bd110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7411baf8ed54f16227d9bb583e9cb253.png)
您最近一年使用:0次