已知集合
,
.
(1)求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求
;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5da49baabf98b5a36e227e143b5abf56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abfe26a44cb73f912bd2fa626961ee2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b109e426e848c161a79366657ca264dc.png)
更新时间:2023-12-20 13:41:26
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【推荐1】设集合
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(1)求
;
(2)求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6285d4b7e44d38119da894a46bab974b.png)
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(1)求
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(2)求
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【推荐1】已知
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或
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(1)
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(2)
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(3)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8594b12cfd9560bbc27e4f0ad721b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a272bbecd33f65e12cf4e46e342751.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b18d49782c83ea51587859d3c2bc216d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(3)
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【推荐2】已知集合A={x|2﹣a≤x≤2+a}(a>0),B={x|x2+3x﹣4≤0}.
(1)若a=3,求A∪B;
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(1)若a=3,求A∪B;
(2)若“x∈A”是“x∈B”的必要条件,求实数a的取值范围.
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解答题-问答题
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(0.85)
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【推荐1】已知集合
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d26454c0b7a024bce85079a546f8d49.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361048fd1b1a7f3b7230404a04b7155a.png)
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【推荐2】已知集合
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09f028694cf74c747a74e3eab3e69a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9066f29886405a3a480606292ad6e238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928cd155cf20033821c58ab602111bd6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7a1d739890a8951586e23b78b035bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4618f0f692260efdea43f3bbf69f1c9a.png)
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