1 . 已知全集U=R,A={x|f(x)=ln(x2﹣1)},B={x|x2﹣2x﹣3<0},则
=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fedf1176ff497d9fa4510e57ba90267a.png)
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2 . 已知全集
,集合
,
,则集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa4f59a3fd052f229e79e5aefa517913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca717c6a55e786238e64f7ebd69b9b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e9ff230e865777e37bee196d0ce5ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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3 . 设全集
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715476727accc3c6b3c71f2f25c3aaad.png)
_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e9f8720e7a86c65b571ae1fc396094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715476727accc3c6b3c71f2f25c3aaad.png)
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名校
解题方法
4 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715476727accc3c6b3c71f2f25c3aaad.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f18ec63414dad027f48d718552eb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2acb1c71b1e9b1ad102446f5026960db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715476727accc3c6b3c71f2f25c3aaad.png)
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2020-05-13更新
|
289次组卷
|
2卷引用:2020届江苏省高三高考全真模拟(二)数学试题
5 . 如果对某对象连续实施两次变换后的结果就是变换前的对象,那么我们称这种变换为“回归”变换.如:对任意一个实数,变换:取其相反数.因为相反数的相反数是它本身,所以变换“取实数的相反数”是一种“回归”变换.有下列3种变换:
①对
,变换:求集合A的补集;
②对任意
,变换:求z的共轭复数;
③对任意
,变换:
(k,b均为非零实数).
其中是“回归”变换的是______ .
①对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc487556ec9fca7872e6fdbbe16136d0.png)
②对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707aed47159fae11f47e464c548a0b95.png)
③对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4431681882c188f25c851f63d0b6417.png)
其中是“回归”变换的是
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解题方法
6 . 设全集
,集合
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d19c887002cc13f351b14b929c02d1d.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e0f5b3af61d926dd97fde4b174226fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8e9ba357a3b1aef289233795123a9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42eae15f45fdcf3666855e00372de679.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d19c887002cc13f351b14b929c02d1d.png)
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7 . 已知全集
,集合
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8098a5b70ac101d0bb0acfbf7219a1fd.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78c938939e2004fc4e60172982144cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8936a85d9a10f49aca7e19deedd27d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8098a5b70ac101d0bb0acfbf7219a1fd.png)
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2020-04-08更新
|
258次组卷
|
2卷引用:2020届江苏省镇江市九校高三下学期3月模拟考试数学试题
名校
解题方法
8 . 已知全集
,集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715476727accc3c6b3c71f2f25c3aaad.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a43c02f814ba22f162bbbe83737215b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88894cc4bd3954de2e42734b69763e06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715476727accc3c6b3c71f2f25c3aaad.png)
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2020高三下·全国·专题练习
9 . 已知全集U={﹣1,0,1,2,3},集合A={﹣1,0,1},则∁UA=_____ .
您最近一年使用:0次
10 . 已知全集
,集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d4b9cac4fa6c3bb20e6a3100a51b5f.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed89ddb7358cf7c43d10cf7659705d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce3fccbcc59658b94c95bb90e342a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19d4b9cac4fa6c3bb20e6a3100a51b5f.png)
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