2021届高三数学一轮复习集合测评卷

2021届高三数学一轮复习测评卷

一、选择题

1.设集合A?{x,x2,xy},B?{1,x,y}，且A?B，则x,y的值为( ) A.x??1,y?0

B.x?1,y?0

C.x?0,y??1

D.x?0,y?1

∣?1}，则A?B?（ ） ∣x2?2x?0，B?{x||x2.若集合A?x??A．??1,0? B． ??1,2? C．?0,1? D．?1,2?

3.已知集合A??x|y?log2(x?1)?,B?y|y?2?x?1，则A?B?( ) A.?2,???

B.?1,2?

C.?1,2?

D.?1,???

??4.已知集合A??1,2,4?,B??2m|m?A?,则A?B的所有元素之和为( ) A.13

B.15

C.17

D.21

5.已知集合A??1,3,5?，B??x?Z|(x?1)(x?4)?0?，则AA.?3?

B.?1,3?

C.?1,2,3,5?

B?( )

D.?1,2,3,4,5?

6.已知全集U?{x?Z|0?x?6},集合A??4,5?,则CUA?( ) A.?1,2,3?

B.?1,2?

C.?0,1,2?

D.?0,1,2,3?

?1?7.已知集合A?{x|x(x?1)?0},B??x|x?1?，则BA?( )

?2?A．??1.0? B．??1,0? C．???,?1?

D．???,0?

8.已知全集U?R,集合A?xx2?4?0,x?Z,集合B?xx2?2x?3?0,则图中阴影部分表示的集合是( )

????

A.?0,1,3?

B.??2,0,1,2,3?

C.?0,?1,?3?

D.??1,0,1,3?

x???0?，集合B??xlog2?x?1??2?，图中阴影部分所表示的集合为9.全集U?R，集合A??x?x?4?( )

A. ???,0??4,5? B. ???,0??4,5?

C. ???,0??4,5? D. ???,4??5,??? 二、填空题

10.已知集合?a,b,c???0,1,2?,且下列三个关系:①a?2;②b?2;③c?0有且只有一个正确,则100a?10b?c?________

11.满足?0,2,4?A?0,2,4,6,8,10?的集合

A的个数是________个

12.若集合A??xx?m?,B??xx??1?，且AB??m?，则实数m的值为_________.

13.若全集U??0,1,2,3,4,5?，且B?CUA??1,2?,A?CUB??5?,CUA?CUB??0,4?，则集合

A?_________.

三、解答题

14.已知全集U?R，集合A?{xx2?2x?3?0}，集合B?{x2?x?4}. （1）求A?B，B?(UA)；

（2）已知集合C?{x2a?1?x?1}，若C?(UA)?C，求实数a的取值范围.