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新高考数学一轮复习考点过关练习 集合的基本运算(含解析)
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这是一份新高考数学一轮复习考点过关练习 集合的基本运算(含解析),共32页。
1、集合的基本运算
2、集合运算性质
(1)并集运算性质:A∪B⊇A;A∪B⊇B;A∪A=A;A∪∅=A;A∪B=B∪A.
(2)交集运算性质:A∩B⊆A;A∩B⊆B;A∩A=A;A∩∅=∅;A∩B=B∩A.
(3)补集运算性质:∁U(∁UA)=A;∁UU=∅;∁U∅=U;A∩(∁UA)=∅;A∪(∁UA)=U.
(4)重要等价关系:A∩B=A⇔A⊆B⇔A∪B=B;A∩B=A∪B⇔A=B.
【题型归纳】
题型一: 交集的概念及运算
1.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则集合 SKIPIF 1 < 0 ( ).
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
2.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
3.若集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
题型二:根据交集结果求集合或参数
4.设集合 SKIPIF 1 < 0 .若 SKIPIF 1 < 0 ,则实数 SKIPIF 1 < 0 的值为( )
A.1B. SKIPIF 1 < 0 C.1或 SKIPIF 1 < 0 D.0或1或 SKIPIF 1 < 0
5.已知集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 的取值范围是( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 且 SKIPIF 1 < 0
C. SKIPIF 1 < 0 且 SKIPIF 1 < 0 D. SKIPIF 1 < 0 且 SKIPIF 1 < 0 且 SKIPIF 1 < 0
6.已知集合 SKIPIF 1 < 0 ,若 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 的最大值为( )
A. SKIPIF 1 < 0 B.0C.1D.2
题型三:根据交集结果求集合元素个数
7.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则集合 SKIPIF 1 < 0 的子集个数为( )
A.2B.4C.8D.16
8.已知集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 的元素个数为( )
A.3B.4C.5D.6
9.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则集合 SKIPIF 1 < 0 的元素个数为( )
A.3B.2C.1D.0
题型四:并集的概念及运算
10.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
11.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
12.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
题型五:根据并集结果求集合或参数
13.已知集合A,B满足 SKIPIF 1 < 0 ,若 SKIPIF 1 < 0 则( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
14.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,若 SKIPIF 1 < 0 ,则实数a的取值范围是( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
15.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,且 SKIPIF 1 < 0 ,则m的取值范围为( ).
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
题型六:根据并集结果求集合元素个数
16.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 中元素的个数是( )
A.4B.5C.6D.7
17.已知集合 SKIPIF 1 < 0 ,M=P∪Q,则集合M中的元素共有( )
A.4个B.6个C.8个D.无数个
18.定义集合的商集运算为 SKIPIF 1 < 0 ,已知集合A={2,4,6},B= SKIPIF 1 < 0 ,则集合 SKIPIF 1 < 0 ∪B中的元素的个数为( )
A.6B.7C.8D.9
题型七: 补集的概念及运算
19.已知集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
20.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则如图中阴影部分表示的集合为( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
21.已知集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
题型八:根据补集运算确定集合或参数
22.设集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则实数 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
23.设全集 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则实数 SKIPIF 1 < 0 的值为( )
A.0B.-1C.2D.0或2
24.已知全集 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 .若 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A.4B.3C.2D.0
【双基达标】
25.下图中矩形表示集合U,A,B是U的两个子集,则不能表示阴影部分的是( )
A. SKIPIF 1 < 0
B. SKIPIF 1 < 0
C. SKIPIF 1 < 0
D. SKIPIF 1 < 0
26.已知集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 ,
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
27.集合 SKIPIF 1 < 0 若 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
28.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A.{1,3}B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
29.若集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
30.若集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 ,若 SKIPIF 1 < 0 ,则实数 SKIPIF 1 < 0 的取值集合为( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
31.设集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
32.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
33.对与任意集合A,下列各式① SKIPIF 1 < 0 ,② SKIPIF 1 < 0 ,③ SKIPIF 1 < 0 ,④ SKIPIF 1 < 0 ,正确的个数是( )
A.1B.2C.3D.4
34.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 或 SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
35.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
36.已知集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 ,则( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
37.已知集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 =
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
38.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
39.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
40.已知集合A={﹣1,0,1,2},B={x|0<x<3},则A∩B=( )
A.{﹣1,0,1}B.{0,1}C.{﹣1,1,2}D.{1,2}
【高分突破】
单选题
41.设集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
42.设集合A={x|x2–4≤0},B={x|2x+a≤0},且A∩B={x|–2≤x≤1},则a=( )
A.–4B.–2C.2D.4
43.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
44.已知集合 SKIPIF 1 < 0 则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
45.已知集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,若 SKIPIF 1 < 0 ,则实数a的值为
A.1B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
46.已知集合P= SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则P SKIPIF 1 < 0 Q=( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0
C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
47.已知集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 的子集的个数为( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
48.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
49.设集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
二、多选题
50.已知集合 SKIPIF 1 < 0 SKIPIF 1 < 0 ,则实数 SKIPIF 1 < 0 取值为( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
51.已知 SKIPIF 1 < 0 {第一象限角}, SKIPIF 1 < 0 {锐角}, SKIPIF 1 < 0 {小于 SKIPIF 1 < 0 的角},那么A、B、C关系是( )
A. SKIPIF 1 < 0 B. SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
52.(多选)由无理数引发的数学危机一直延续到19世纪.直到1872年,德国数学家戴德金从连续性的要求出发,用有理数的“分割”来定义无理数(史称戴德金分割),并把实数理论建立在严格的科学基础上,才结束了无理数被认为“无理”的时代,也结束了持续2000多年的数学史上的第一次大危机.所谓戴德金分割,是指将有理数集 SKIPIF 1 < 0 划分为两个非空的子集 SKIPIF 1 < 0 与 SKIPIF 1 < 0 ,且满足 SKIPIF 1 < 0 , SKIPIF 1 < 0 , SKIPIF 1 < 0 中的每一个元素都小于 SKIPIF 1 < 0 中的每一个元素,则称 SKIPIF 1 < 0 为戴德金分割.试判断下列选项中,可能成立的是( )
A. SKIPIF 1 < 0 是一个戴德金分割
B. SKIPIF 1 < 0 没有最大元素, SKIPIF 1 < 0 有一个最小元素
C. SKIPIF 1 < 0 有一个最大元素, SKIPIF 1 < 0 有一个最小元素
D. SKIPIF 1 < 0 没有最大元素, SKIPIF 1 < 0 也没有最小元素
53.已知集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 ,则( )
A. SKIPIF 1 < 0 SKIPIF 1 < 0 B. SKIPIF 1 < 0 SKIPIF 1 < 0 C. SKIPIF 1 < 0 D. SKIPIF 1 < 0
三、填空题
54.已知 SKIPIF 1 < 0 , SKIPIF 1 < 0 ,若 SKIPIF 1 < 0 ,则实数 SKIPIF 1 < 0 的取值范围是______.
55.若A={x|x2+(m+2)x+1=0,x∈R},且A∩R+= SKIPIF 1 < 0 ,则m的取值范围是__.
56.在整数集 SKIPIF 1 < 0 中,被5除所得余数为 SKIPIF 1 < 0 的所有整数组成一个“类”,记为 SKIPIF 1 < 0 ,即 SKIPIF 1 < 0 , SKIPIF 1 < 0 ;给出下列四个结论:① SKIPIF 1 < 0 ;② SKIPIF 1 < 0 ;③ SKIPIF 1 < 0 ;④“整数 SKIPIF 1 < 0 属于同一‘类’”的充要条件是“ SKIPIF 1 < 0 ”.其中,正确结论的个数是_______.
57.已知集合 SKIPIF 1 < 0 ,集合 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 ________
58.若集合 SKIPIF 1 < 0 , SKIPIF 1 < 0 , SKIPIF 1 < 0 ,则集合 SKIPIF 1 < 0 的子集个数为______.
59.已知全集 SKIPIF 1 < 0 ,则 SKIPIF 1 < 0 的值为__________
四、解答题
60.已知全集U={x|x≤4},集合A={x|-2
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