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九年(2010-2018年)高考真題文科數(shù)學(xué)優(yōu)選(含剖析)專題一會(huì)合和常用邏輯用語第一講會(huì)合一、選擇題1.(2018全國(guó)卷Ⅰ)已知會(huì)合A{0,2},B{2,1,0,1,2},則ABA.{0,2}B.{1,2}C.{0}D.{2,1,0,1,2}2.(2018浙江)已知全集U{1,2,3,4,5},A{1,3},則UA=A.B.{1,3}C.{2,4,5}D.{1,2,3,4,5}3.(2018全國(guó)卷Ⅱ)已知會(huì)合A1,3,5,7,B2,3,4,5,則ABA.{3}B.{5}C.{3,5}D.1,2,3,4,5,7.(2018北京已知會(huì)合A{x||x|2},B{2,0,1,2},則AB4)A.{0,1}B.{–1,0,1}C.{–2,0,1,2}D.{–1,0,1,2}5.(2018全國(guó)卷Ⅲ)已知會(huì)合A{x|x1≥0},B{0,1,2},則ABA.{0}B.{1}C.{1,2}D.{0,1,2}6.(2018天津)設(shè)會(huì)合A{1,2,3,4},B{1,0,2,3},C{xR|1≤x2},則(AB)CA.{1,1}B.{0,1}C.{1,0,1}D.{2,3,4}7.(2017新課標(biāo)Ⅰ)已知會(huì)合A{x|x2},B{32x0},則A.AB{x|x3B.AB}2C.AB{x|x3}D.ABR28.(2017新課標(biāo)Ⅱ)設(shè)會(huì)合A{1,2,3},B{2,3,4}則AB=A.{1,2,3,4}B.{1,2,3}C.{2,3,4}D.{1,3,4}9.(2017新課標(biāo)Ⅲ)已知會(huì)合A{1,2,3,4},B{2,4,6,8},則AB中元素的個(gè)數(shù)為A.1B.2C.3D.410.(2017天津)設(shè)會(huì)合A{1,2,6},B{2,4},C{1,2,3,4},則(AB)CA.{2}B.{1,2,4}C.{1,2,4,6}D.{1,2,3,4,6}11.(2017山東)設(shè)會(huì)合Mxx11,N則xx2,MNA.1,1B.1,2C.0,2D.1,212.(2017北京)已知UR,會(huì)合A{x|x2或x2},則UA=A.(2,2)B.(,2)(2,)C.[2,2]D.(,2][2,)13.(2017浙江)已知會(huì)合P{x|1x1},Q{x|0x2},那么PQ=A.(1,2)B.(0,1)C.(1,0)D.(1,2)14.(2016全國(guó)I卷)設(shè)會(huì)合A{1,3,5,7},B{x|2≤x≤5},則AB=A.{1,3}B.{3,5}C.{5,7}D.{1,7}15.(2016全國(guó)Ⅱ卷)已知會(huì)合A{12,,3},B{x|x2B9},則AA.{2,1,0,1,2,3}B.{2,1,0,1,2}C.{1,2,3}D.{1,2}16.(2016全國(guó)Ⅲ)設(shè)會(huì)合A{0,2,4,6,8,10},B{4,8},則AB=A.{4,8}B.{0,2,6}C.{0,2,6,10}D.{0,2,4,6,810},17.(2015新課標(biāo)2)已知會(huì)合A{x|1x2},B{x|0x3},則AB=A.(1,3)B.(1,0)C.(0,2)D.(2,3)18.(2015新課標(biāo)1)已知會(huì)合A{xx3n2,nN},B{6,8,10,12,14},則會(huì)合AB中的元素個(gè)數(shù)為A.5B.4C.3D.219.(2015北京)若會(huì)合A{x|5x2},B{x|3x3},則AB=A.{x|3x2}B.{x|5x2}C.{x|3x3}D.{x|5x3}20.(2015天津)已知全集U{1,2,3,4,5,6},會(huì)合A2,3,5,會(huì)合B{1,3,4,6},則會(huì)合AUBA.{3}B.{2,5}C.{1,4,6}D.{2,3,5}21.(2015陜西)設(shè)會(huì)合M{x|x2x},N{x|lgx≤0},則MN=A.[0,1]B.(0,1]C.[0,1)D.(-∞,1]22.(2015山東)已知會(huì)合Ax2x4,Bx(x1)(x3)0,則ABA.1,3B.1,4C.2,3D.2,423.(2015福建)若會(huì)合Mx2x2,N0,1,2,則MN等于A.0B.1C.0,1,2D.0,124.(2015廣東)若會(huì)合M1,1,N2,1,0,則MNA.0,1B.1C.0D.1,125.(2015湖北)已知會(huì)合A{(x,y)|x2y2≤1,x,yZ},B{(x,y)||x|≤2,|y|≤2,x,yZ},定義會(huì)合AB{(x1x2,y1y2)|(x1,y1)A,(x2,y2)B},則AB中元素的個(gè)數(shù)為A.77B.49C.45D.30.新課標(biāo))已知會(huì)合A={x|22x30},-2≤x<2},則AB=26(2014xB={x|A.[2,1]B.[1,1]C.[1,2)D.[1,2)27.(2014新課標(biāo))設(shè)會(huì)合M={0,1,2},N=x|x23x2≤0,則MN=A.{1}B.{2}C.{0,1}D.{1,2}28.(2014新課標(biāo))已知會(huì)合A={2,0,2},B={x|x2x20},則ABA.B.2C.0D.229.(2014山東)設(shè)會(huì)合A{xx12},B{yy2x,x[0,2]},則ABA.[0,2]B.(1,3)C.[1,3)D.(1,4)30.(2014山東)設(shè)會(huì)合A{x|x22x0},B{x|1x4},則ABA.(0,2]B.(1,2)C.[1,2)D.(1,4)31.(2014廣東)已知會(huì)合M{1,0,1},N{0,1,2},則MNA.{0,1}B.{1,0,2}C.{1,0,1,2}D.{1,0,1}32.(2014福建)若會(huì)合P{x|2≤x4},Q{x|x≥3},則PQ等于A.x3x4B.x3x4C.x2x3D.x2x333.(2014浙江)設(shè)全集UxN|x2,會(huì)合AxN|x25,則UA=A.B.{2}C.{5}D.{2,5}34.(2014北京)已知會(huì)合A{x|x22x0},B{0,1,2},則ABA.{0}B.{0,1}C.{0,2}D.{0,1,2}35.(2014湖南)已知會(huì)合A{x|xA.{x|x2}B.{x|x1}
2},B{x|1x3},則ABC.{x|2x3}D.{x|1x3}36.(2014陜西)已知會(huì)合M{x|x0},N{x|x21,xR},則MNA.[0,1]B.[0,1)C.(0,1]D.(0,1)37.(2014江西)設(shè)全集為R,會(huì)合A{x|x290},B{x|1x5},則A(RB)A.(3,0)B.(3,1)C.(3,1]D.(3,3)38.(2014遼寧)已知全集UR,A{x|x0},B{x|x1},則會(huì)合U(AB)A.{x|x0}B.{x|x1}C.{x|0x1}D.{x|0x1}39.(2014四川)已知會(huì)合A{x|x2x20},會(huì)合B為整數(shù)集,則ABA.{1,0,1,2}B.{2,1,0,1}C.{0,1}D.{1,0}40.(2014湖北)已知全集U{1,2,3,4,5,6,7},會(huì)合A{1,3,5,6},則UAA.{1,3,5,6}B.{2,3,7}C.{2,4,7}D.{2,5,7}41.(2014湖北)設(shè)U為全集,A,B是會(huì)合,則“存在會(huì)合C使得AC,BUC”是“AB”的A.充分而不用要條件B.必需而不充分條件C.充要條件D.既不充分也不用要條件42.(2013新課標(biāo)1)已知會(huì)合A={x|x2-2x>0},B={x|-5<x<5},則A.A∩B=B.A∪B=RC.B?AD.A?B43.(2013新課標(biāo)1)已知會(huì)合A{1,2,3,4},B{x|xn2,nA},則ABA.1,4B.,C.916,D.1,22344.(2013新課標(biāo)2)已知會(huì)合Mx|x12R,N1,0,1,2,3,4,x則MN=A.0,1,2B.1,0,1,2C.1,0,2,3D.0,1,2,345.(2013新課標(biāo)2)已知會(huì)合M{x|3x1},N{3,2,1,0,1},則MNA.{2,1,0,1}B.{3,2,1,0}C.{2,1,0}D.{3,2,1}46.(2013山東)已知會(huì)合A、B均為全集U{1,2,3,4}的子集,且U(AB){4},B{1,2},則AUBA.{3}B.{4}C.{3,4}D.47.(2013山東)已知會(huì)合A={0,1,2},則會(huì)合B=xy|xA,yA中元素的個(gè)數(shù)是A.1B.3C.5D.948.(2013安徽)已知Ax|x10,B2,1,0,1,則(CRA)BA.2,1B.2C.1,0,1D.0,149.(2013遼寧)已知會(huì)合Ax|0log4x1,Bx|x2,則ABA.01,B.0,2C.1,2D.1,250.(2013北京)已知會(huì)合A1,0,1,Bx|1x1,則ABA.0B.1,0C.0,1D.1,0,151.(2013廣東)設(shè)會(huì)合S{x|x22x0,xR},T{x|x22x0,xR},則STA.{0}B.{0,2}C.{2,0}D.{2,0,2}52.(2013廣東)設(shè)整數(shù)n4,會(huì)合X1,2,3,,n,令會(huì)合S{(x,y,z)|x,y,zX,且三條件xyz,yzx,zxy恰有一個(gè)建立},若x,y,z和z,w,x都在S中,則以下選項(xiàng)正確的選項(xiàng)是A.y,z,wS,x,y,wSB.y,z,wS,x,y,wSC.y,z,wS,x,y,wSD.y,z,wS,x,y,wS53.(2013陜西)設(shè)全集為R,函數(shù)f(x)1x2的定義域?yàn)镸,則CRM為A.[-1,1]B.(-1,1)C.(,1][1,)D.(,1)(1,)542013江西)若會(huì)合AxR|ax2ax10中只有一個(gè)元素,則a=.(A.4B.2C.0D.0或41x55.(2013湖北)已知全集為R,會(huì)合Ax1,Bx|x26x80,2則ACRBA.
x|x
0
B.
x|2≤x≤4C.
x|0
x2或x
4
D.x|0
x
2或x
456.(2012
廣東)設(shè)會(huì)合
U
{1,2,3,4,5,6},M
{1,3,5};則CUMA.{,,}
B.{1,3,5}
C.{,,}
D.U57.(2012浙江)設(shè)全集
U
1,2,3,4,5,6
,設(shè)會(huì)合
P
1,2,3,4
,Q
3,4,5
,則P
UQ=A.
1,2,3,4,6
B.
1,2,3,4,5
C.
1,2,5
D.
1,258.(2012福建)已知會(huì)合
M
{1,2,3,4}
,N
{2,2},以下結(jié)論建立的是A.
N
M
B.
M
NM
C.
M
N
N
D.M
N{2}59.(2012新課標(biāo))已知會(huì)合
A{x|x2
x2
0},B
{x|
1
x1}
,則A.ABB.BAC.ABD.60.(2012安徽)設(shè)會(huì)合A={x|32x13},會(huì)合B為函數(shù)則AB=
ABylg(x1)的定義域,A.(1,2)B.[1,2]C.[1,2)D.(1,2]61.(2012江西)若會(huì)合A{1,1},B{0,2},則會(huì)合{z|zxy,xA,yB}中的元素的個(gè)數(shù)為A.5B.4C.3D.262.(2011浙江)若P{x|x1},Q{x|x1},則A.PQB.QPC.CRPQD.QCRP63.(2011新課標(biāo))已知會(huì)合M={0,1,2,3,4},N={1,3,5},PMN,則P的子集共有A.2個(gè)B.4個(gè)C.6個(gè)D.8個(gè)642011北京)已知會(huì)合P={x|x21},M{a}.若PMP,則a的取值范圍.(是A.(∞,1]B.[1,+)∞C.[1,1]D.(∞,1][1,+∞)65.(2011江西)若全集U{1,2,3,4,5,6},M{2,3},N{1,4},則會(huì)合{5,6}等于A.MNB.MNC.CnMCnND.CnMCnN66.(2011湖南)設(shè)全集UMN{1,2,3,4,5},MCUN{2,4},則N=A.{1,2,3}B.{1,3,5}C.{1,4,5}D.{2,3,4}67.(2011廣東)已知會(huì)合A={(x,y)|x,y為實(shí)數(shù),且x2y21},B={(x,y)|x,y為實(shí)數(shù)且xy1},則AB的元素個(gè)數(shù)為A.4B.3C.2D.168.(2011福建)若會(huì)合M={1,0,1},N={0,1,2},則M∩N等于A.{0,1}B.{1,0,1}C.{0,1,2}D.{1,0,1,2}69.(2011陜西)設(shè)會(huì)合My|y|cos2xsin2x|,xR,N{x||x1|2,ii為虛數(shù)單位,
x
R}
,則
M
N為A.(0,1)
B.(0,1]
C.[0,1)
D.[0,1]70.(2011遼寧)已知
M,N為會(huì)合
I的非空真子集,且
M,N
不相等,若
N
IM
,則M
NA.M
B.N
C.I
D.71.(2010湖南)已知會(huì)合
M
1,2,3
,N
2,3,4
,則A.M
N
B.
N
MC.M
N
2,3
D.M
N
1,472.(2010陜西)會(huì)合
A=
x|1
x
2
,B=
x|x
1
,則
A
(
RB)
=A.
x|x
1
B.
x|x
1
C.
x|1
x
2
D.
x|1
x
273.(2010浙江)設(shè)P={x︱x<4},Q={x︱x2<4},則A.PQB.QPC.PRQD.QRP74.(2010安徽)若會(huì)合Axlog1x1,則RA22A.(,0]2,B.2,22C.(,0][2,)D.[2,)2275.(2010遼寧)已知A,B均為會(huì)合U={1,3,5,7,9}的子集,且AB{3},UBA{9},則A=A.{1,3}B.{3,7,9}C.{3,5,9}D.{3,9}二、填空題76.(2018江蘇)已知會(huì)合A{0,1,2,8},B{1,1,6,8},那么AB.772017A{1,2},B{a,a23}AB{1},則實(shí)數(shù)a的.(江蘇)已知會(huì)合,若值為____.78.(2015江蘇)已知會(huì)合A123,B245,則會(huì)合AB中元素的個(gè)數(shù)為.,,,,79.(2015湖南)已知會(huì)合U=1,2,3,4,A=1,3,B=1,3,4,則A(UB)=.80.(2014江蘇)已知會(huì)合A={2,1,3,4},B{1,2,3},則AB.81.(2014重慶)設(shè)全集U{nN|1n10},A{1,2,3,5,8},B{1,3,5,7,9},則(UA)B=.82.(2014福建)若會(huì)合{a,b,c,d}{1,2,3,4},且以下四個(gè)關(guān)系:①a1;②b;1③c2;④d4有且只有一個(gè)是正確的,則切合條件的有序數(shù)組(a,b,c,d)的個(gè)數(shù)是_________.83.(2013湖南)已知會(huì)合U{2,3,6,8},A{2,3},B{2,6,8},則(UA)B=.84.(2010湖南)若規(guī)定Ea1,a2,...,a10的子集ai1,ai2,...,ain為E的第k個(gè)子集,此中k=2i112i212in1,則1)a1,,a3是E的第____個(gè)子集;2)E的第211個(gè)子集是_______.85(2010)設(shè)會(huì)合A{1,1,3},B{a2,a24},AB{3},則實(shí)數(shù)a=__..江蘇專題一會(huì)合和常用邏輯用語第一講會(huì)合答案部分1.A【剖析】由題意AB{0,2},應(yīng)選A.2.C【剖析】由于U{1,2,3,4,5},A{1,3},因此UA={2,4,5}.應(yīng)選C.3.C【剖析】由于A1,3,5,7,B2,3,4,5,因此AB{3,5},應(yīng)選C.4.A【剖析】A{x||x|2}(2,2),B{2,0,1,2},∴AB{0,1},應(yīng)選A.5.C【剖析】由題意知,A{x|x1≥0},則AB{1,2}.應(yīng)選C.6.C【剖析】由題意AB{1,0,1,2,3,4},∴(AB)C{1,0,1},應(yīng)選C.7.A【剖析】∵B3},∴AB{x|x3,選A.{x|x}228.A【剖析】由并集的觀點(diǎn)可知,AB{1,2,3,4},選A.9.B【剖析】由會(huì)合交集的定義AB{2,4},選B.10.B【剖析】∵AB{1,2,4,6},(AB)C{1,2,4},選B.11.C【剖析】M{x|0x2},因此MN{x|0x2},選C.12.C【剖析】UA{x|2≤x≤2},選C.13.A【剖析】由題意可知PQ{x|1x2},選A.14.B【剖析】由題意得,A{1,3,5,7},B{x|2x5},則AB{3,5}.選B.15.D【剖析】易知B{x|3x3},又A{1,2,3},因此AB{1,2}應(yīng)選D.16.C【剖析】由補(bǔ)集的觀點(diǎn),得AB{0,2,6,10},應(yīng)選C.17.A【剖析】∵A(1,2),B(0,3),∴AB(1,3).18.D【剖析】會(huì)合A{x|x3n2,nN},當(dāng)n0時(shí),3n22,當(dāng)n1時(shí),3n25,當(dāng)n2時(shí),3n28,當(dāng)n3時(shí),3n211,當(dāng)n4時(shí),3n214,∵B{6,8,10,12,14},∴AB中元素的個(gè)數(shù)為2,選D.19.A【剖析】AB{x|3x2}.20.B【剖析】UB{2,5},∴AUB{2,5}.21.A【剖析】∵M(jìn){0,1},N{x|0x≤1},∴MN=[0,1].22.C【剖析】由于B{x|1x3},因此AB(2,3),應(yīng)選C.23.D【剖析】∵M(jìn)N{0,1}.24.B【剖析】MN{1}.25.C【剖析】由題意知,A{(x,y)x2y21,x,yZ}{(1,0),(1,0),(0,1),(0,1)},B{(x,y)|x|2,|y|2,x,yZ},因此由新定義會(huì)合AB可知,x11,y10或x10,y11.當(dāng)x11,y10時(shí),x1x23,2,1,0,1,2,3,y1y22,1,0,1,2,因此此時(shí)AB中元素的個(gè)數(shù)有:7535個(gè);當(dāng)x10,y11時(shí),x1x22,1,0,1,2,y1y23,2,1,0,1,2,3,這類情況下和第一種狀況下除y1y2的值取3或3外均同樣,即此時(shí)有5210,由分類計(jì)數(shù)原理知,AB中元素的個(gè)數(shù)為351045個(gè),故應(yīng)選C.26.A【剖析】Ax|x≤1或x≥3,故AB=[2,1].27.D【剖析】Nx|1≤x≤2,∴MN={1,2}.28.B【剖析】∵B1,2,∴AB2.29.C【剖析】|x1|21x3,∴A(1,3),B[1,4].∴AB[1,3).30.C【剖析】∵A(0,2),B[1,4],因此AB[1,2).31.C【剖析】MN1,0,10,1,21,0,1,2,選C.32.A【剖析】PQ=x3x4..【剖析】由題意知U{xN|x≥2},A{xN|x≥5},33B因此UA={xN|2≤x5},選B.34.C【剖析】∵Ax|x22x00,2.∴AB=0,2.35.C【剖析】AB{x|2x3}.36.B【剖析】∵x21,∴1x1,∴MNx|0≤x1,應(yīng)選B.37.C【剖析】Ax|3,x3,RBx|x≤1或x5,∴A(RB)x|3≤x≤1.38.D【剖析】由已知得,AB=xx0或x1,故U(AB){x|0x1}.39.A【剖析】A{x|1x2},BZ,故AB{1,0,1,2}.40.C【剖析】UA2,4,7.41.C【剖析】“存在會(huì)合C使得AC,BUC”“AB
”,選C.42.B【剖析】A=(,0)∪(2,+),∴AB=R,應(yīng)選B.43.A【剖析】B1,4,9,16,∴AB1,4.44.A【剖析】∵M(jìn)(1,3),∴MN0,1,2..【剖析】由于M{x3x1},N{3,2,1,0,1},45C因此MN{2,1,0},選C.46.A【剖析】由題意AB1,2,3,且B{1,2},因此A中必有3,沒有4,UB3,4,故AUB3.47.C【剖析】x0,y0,1,2,xy0,1,2;x1,y0,1,2,xy1,0,1;x2,y0,1,2,xy2,1,0.∴B中的元素為2,1,0,1,2共5個(gè).48.A【剖析】A:x1,RA{x|x≤1},(RA)B{1,2},因此答案選A49.D【剖析】由會(huì)合A,1x4;因此AB(1,2].50.B【剖析】會(huì)合B中含1,0,故AB1,0.51.A【剖析】∵S2,0,T0,2,∴ST0.52.B【剖析】特別值法,不如令x2,y3,z4,w1,則y,z,w3,4,1S,x,y,w2,3,1S,應(yīng)選B.假如利用直接法:由于x,y,zS,z,w,xS,因此xyz①,yzx②,zxy③三個(gè)式子中恰有一個(gè)建立;zwx④,wxz⑤,xzw⑥三個(gè)式子中恰有一個(gè)建立.配對(duì)后只有四種狀況:第一種:①⑤建立,此時(shí)wxyz,于是y,z,wS,x,y,wS;第二種:①⑥建立,此時(shí)xyzw,于是y,z,wS,x,y,wS;第三種:②④建立,此時(shí)yzwx,于是y,z,wS,x,y,wS;第四種:③④建立,此時(shí)zwxy,于是y,z,wS,x,y,wS.綜合上述四種狀況,可得y,z,wS,x,y,wS.53.D【剖析】f(x)的定義域?yàn)镸=[1,1],故RM=(,1)(1,),選D54.A【剖析】當(dāng)a0時(shí),10不合,當(dāng)a0時(shí),0,則a4.55.C【剖析】A0,,B2,4,∴ARB[0,2)(4,).56.A【剖析】UM={,,}.57.D【剖析】Q3,4,5,UQ=1,2,6,PUQ=1,2.58.D【剖析】由M={1,2,3,4},N={2,2},可知2∈N,可是2M,則NM,故A錯(cuò)誤.∵M(jìn)N={1,2,3,4,2}≠M(fèi)B錯(cuò)誤.M∩NNC錯(cuò),故={2}≠,故誤,D正確.應(yīng)選D.59.B【剖析】A=(1,2),故BA,應(yīng)選B..【剖析】A{x32x13}[1,2],B(1,)AB(1,2].60D61.C【剖析】依據(jù)題意簡(jiǎn)單看出xy只好取1,1,3等3個(gè)數(shù)值.故共有3個(gè)元素.62.D【剖析】P{x|x1}∴RP{x|x1},又∵Q{x|x1},∴QRP,應(yīng)選D.63.B【剖析】PMN{1,3},故P的子集有4個(gè).64.C【剖析】由于PMP,因此MP,即aP,得a21,解得1a1,因此a的取值范圍是[1,1].65.D【剖析】由于MN{1,2,3,4},因此UMUN=U(MN)={5,6}.66.B【剖析】由于UMN,因此NN(UM)U(UN)(UM)=U[(UN)M]={1,3,5}.67.C【剖析】由x2y21消去y,得x2x0,解
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