2022学年高考数学专题复习 专题1 集合（Word含答案）.doc

162022学年高考数学专题复习专题1集合一单选题1设全集UR集合11987211990911991011199092则119862119880119872A1199091Cxx1Dxx1或x12以下各组对象不能组成集合的是A中国古代四大发明B地球上的小河流C方程119909270的实数解D周长为10cm的三角形3已知集合11986012341198612345则119860119861子集的个数为A4B8C16D324已知集合1198601199091199101199092211990931198613023119872119860119861则119872的真子集共有A3个B4个C7个D8个5已知集合119860123411986111991011991021199091119909119860则119860119861A12B24C124D6已知集合Axx210则下列式子表示正确的有1A1AA11AA1个B2个C3个D4个7设集合1198721199093A23B33C12D128已知函数1198911199093cos212059611990912058731205960在120587351205876上是减函数且在02120587上恰好取得一次最小值3则120596的取值范围是A025B1625C012D1612二多选题9满足1198721198861119886211988631198864且11987211988611198862119886311988611198862的集合M可能是A11988611198862B119886111988621198863C119886111988621198864D119886111988621198863119886410已知全集为119880集合119860和集合119861的韦恩图如图所示则图中阴影部分可表示为26A119880119860119861B119880119860119861C119880119860119861119861D11988011986011988011986111下列命题成立的是A若119886119887119888119889则119886119889119887119888B若不等式1199092119886119909119887C若119886119877119887119877则1198862119887221198861198871D若ab满足112已知集合119872111198731199091198981199091且119872119873119873则实数m的值可以为A1B1C2D0三填空题13已知11990911199092是关于119909的方程119909211989821199091198990的两个实数根11991011199102是关于119910的方程1199102311989811991060的两个实数根其中119898119899是常数且11990911199101119909211991022则811989811989914函数1199101lg119909141199092的定义域为15集合A16Bxy119909119886若AB则实数a的范围是16下列关系正确的有3119876024119910119910119909211990911987700四解答题17已知集合1198601231若119872是119860的子集且至少含有元素3写出满足条件的所有集合1198722若11986111990911988611990930且119861119860求实数119886的取值集合18设集合119860119909119886121若119860119861求实数119886的取值范围2若119860119861119861求实数119886的取值范围19已知集合119860119909119909119886119909119886101198611199091199093或1199096361当1198864时求1198601198612当1198860时若119909119860是119909119861的充分条件求119886的取值范围20设集合119860211199092119909111986121199104119909411986217且ABC求实数xy的值及AB21已知集合11986111990931求1198611198621198611198622设函数1198911199094119909119886的定义域为A且119861119877119860求实数a的取值范围22已知函数1198911199092119909111990911198921199091199091198861199091198861解不等式1198911199094211990911198771199092119877使得11989111990911198921199092求实数119886的取值范围46答案解析部分1答案C2答案B3答案D4答案C5答案C6答案C7答案B8答案B9答案AC10答案AC11答案BC12答案ABD13答案214答案100215答案116答案17答案1解1198721198603119872119872可能的集合为313231232解当1198860时119861满足119861119860当1198860时1198613119886若119861119860则31198861或31198862或31198863解得1198863或11988632或1198861综上所述实数119886的取值集合为0132318答案1解集合11986011990911988612若119860119861120601则1198861111988612即11988601198861解得01198861实数a的取值范围时012解若119860119861119861119860119861则11988611或1198861256解得1198862或1198863则实数a的取值范围为2319答案1解当1198864时由不等式119909411990950得51199094故11986011990951199094又1198611199091199093或1199096所以1198601198611199091199094或11990962解若119909119860是119909119861的充分条件等价于119860119861因为1198860由不等式11990911988611990911988610得1198601199091198861119909119886又1198611199091199093或1199096要使119860119861则1198863或11988616综合可得119886的取值范围为0320答案解由已知119860211199092119909111986121199104119909411986217且ABC得7A7B且1B则在集合A中119909211990917解得x2或3当x2时在集合B中x42又2A故2AB又ABC故2C但2C故x2不合题意舍去当x3时在集合B中x47故有2y1解得11991012经检验满足ABC综上知x311991012此时119860217119861147故119860119861412721答案1集合1198611199093119909119861119910119909211990911199091225454511986254511986111986254211986111986235662函数1198911199094119909119886的定义域为1198601198864119877119860119886411986111987711986021198864解得1198868实数a的取值范围是822答案1解由题得11989111990911990921199091311990911198911199094等价于119909241199091或311990941411990912解得1199096综上原不等式的解集为11990911990962解1199091198861199091198862119886由1知1198911199091198911232211988632实数119886的取值范围为3434