已知全集
,集合
,
,求
,
,
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88004856d376f04aeb52a321d8af31bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76cb5a8ac87fc13945d2e03cc6c021e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9ee4df3cd0c5982eec8be19e136130.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7f860e8f0503c476eaf0bd73a71810.png)
更新时间:2020-12-15 20:26:58
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【推荐1】设全集U=R,集合A={x|﹣1≤x≤3},B={x|0<x<4},C={x|x<a}.
(1)求A∩B,A∪B;
(2)若B⊆C,求实数a的取值范围.
(1)求A∩B,A∪B;
(2)若B⊆C,求实数a的取值范围.
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【推荐2】已知集合
为小于6的正整数},
为小于10的素数},集合
为24和36的正公因数}.
(1)试用列举法表示集合
且
;
(2)试用列举法表示集合
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca61cc2979afab1230957e8ee6cdd1c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb27781e5afac219e3c2cb6038b718d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f58f2d0c83d73086cfc70d34ea0d26.png)
(1)试用列举法表示集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38aef0ebb414f9ab3af6cd8c01802702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1af5f5b0014b668981f1da040b5123ed.png)
(2)试用列举法表示集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3394cd9f9e2149e59f6b008cadcdad5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bacc5c75c627c9e57a125e6e20e1ab7.png)
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【推荐1】已知全集U=R,A={x|﹣3<x<6,
},B={x|x2﹣5x﹣6<0,
}.求:
(1)A∪B;
(2)
.
![](https://img.xkw.com/dksih/QBM/2014/10/14/1571876206510080/1571876212195328/STEM/730c2c6a562748a8a312cab42d377311.png)
![](https://img.xkw.com/dksih/QBM/2014/10/14/1571876206510080/1571876212195328/STEM/730c2c6a562748a8a312cab42d377311.png)
(1)A∪B;
(2)
![](https://img.xkw.com/dksih/QBM/2014/10/14/1571876206510080/1571876212195328/STEM/035829280b194d4f855088bd75df961b.png)
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【推荐1】已知集合
,集合
.
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54a430320aa1be5d2ffb15f6c00621b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77eed7aa4959ec041bc368b09dfe6ea.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/318212b9ba5866ba3fd6f4327526443f.png)
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【推荐2】设
,已知集合
,
.
(1)当
时,求
;
(2)若
,且
,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a27ff28207bd10384f32dd15964b22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c83643d7d0a51eccba7fc7c2895d106.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61410f474533fe21cfe5354b747a5de9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/928cd155cf20033821c58ab602111bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
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【推荐1】设全集
,集合
,
,
.
(1)求
;
(2)若“
”是“
”充分不必要条件,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1c9c15a75b8948bede5bb8c14e065c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/467592f6647dcf6962aa374859182bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee8f71b74052641d721fd64984c1b70c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24985a04c75e04117baaeb290c8cda6.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
【推荐2】已知集合
,
.
(1)求
;
(2)若
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab5cbc4da255dcb4e58d2814e122f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bb50cb373fe922ed5111b0d2567d838.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31333463f002b68938ee903c9dfbe125.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/867e3cbd955ebe6f11f2da714ece150a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e544b1304a6bbc87283cf741f134cebe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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