已知集合
,集合
.求集合
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1aa2518bd0d68b4a938204ed0eba0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdd5218f7dd24d4731d4433f0c4dfb54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
更新时间:2021-01-17 00:12:09
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【推荐1】设集合A={x|x2<9},B={x|(x-2)(x+4)<0}.
(1)求集合A∩B;
(2)若不等式2x2+ax+b<0的解集为A∪B,求a,b的值.
(1)求集合A∩B;
(2)若不等式2x2+ax+b<0的解集为A∪B,求a,b的值.
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解答题-问答题
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【推荐2】设全集为
,
,
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81842fe905d65515c3f1378723b287fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380c75058b48696f623eae5eeb987743.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0d45290cd197eea95681b83c270539.png)
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解答题-问答题
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(0.85)
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【推荐2】已知集合
,集合
.
(1)求集合A;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d2abfde28646ddb93f745bd2bc66ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dcb14826af77a48006ff0d9970bd623.png)
(1)求集合A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ba67d98499a290c156cf81473c91bb8.png)
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解答题-问答题
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【推荐2】集合
,
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49c999443fe018999e59a4fece3e7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0998a45176b7df6a430478420d360ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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