已知集合
,
.
(1)当
时,求
,
;
(2)若
时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4feb16a62db0421da7ef0325f23710fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a375c8e5927d29223cea01dd70003051.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd876a2ed79c64bacc3e64b8ee92735e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-11-17 14:52:22
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【推荐1】已知集合
.
(1)求集合
;
(2)若
,,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/137e9816e2c62696eec08eee65206383.png)
(1)求集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca285999a2512c08e097bb68be6387c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
【推荐2】已知集合
,集合
.
(1)当
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da613ff687b495a74d684f57c6dffa6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c18c55b7326d68fb131a20cf20fae4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知
或
.
(1)若
,求
;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/777dbf07f6376482bfa4d62b5730a2ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b700dc51dce8dd6f00d1d1905672d9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
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【推荐2】若全集
,集合
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求:(1)
,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16788422bd49012a15e51a0d2ec91488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17cebe268b01e58f761eb37a308433ae.png)
求:(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e5450f24464d07f1a767714fa639cc.png)
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【推荐1】已知
,
.
(1)求
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(2)若记符号
,在图中把表示“集合
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce5e09b16162efdaba37d98afaaaab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b381b7a5c01254d32c06128e60e536.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若记符号
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d2db972c40de95f3e08a67f0815b66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e460c144f7a2141d2df0308b125f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/2b56ace3-9dbc-4eab-a6d9-a36d92ba31b0.png?resizew=185)
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【推荐2】已知集合
,
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1
当
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22a5a6ada66630390359c00823dbb6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3154e61414f799a7abe4cc51c22ec2f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9991913a9bc20ca42a20565df6e08f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d589fa930da5a9f6ba3db427432bd20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be37ebdd7f7ccee76ac2007bf1e63b1b.png)
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