设全集为R,集合A={x|-3<x<4},B={x|1≤x≤10}.
(1)求A∪B,A∩(∁RB);
(2)已知集合C={x|2a-1≤x≤a+1},若C∩A=C,求实数a的取值范围.
(1)求A∪B,A∩(∁RB);
(2)已知集合C={x|2a-1≤x≤a+1},若C∩A=C,求实数a的取值范围.
更新时间:2019-12-07 12:21:08
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【推荐2】设全集为
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(1)当
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【推荐1】设集合
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【推荐2】已知集合A={x|x2-(a-1)x-a<0,a∈R},集合B={x|
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