高三数学集合与简易逻辑复习.doc

高三数学集合与简易逻辑复习.doc高考数学复****集合与简易逻辑专项练****br/>
={x|∈Z},B={y|∈Z},则A∩B等于
                                                                
C.                                                             
|8-3x|>0的解集是
A.                                                            
C.{x|x≠,x∈R}                                          D.{ }
“若p则q”为真时,下列命题中一定正确的是
                                                
                                            
={-2,-1,0,1,2},A={1,2},B={-2,-1,2},则A∪( B)等于(   )
A.{1}                           B.{1,2}
C.{2}                           D.{0,1,2}
:①3{x|x≤};②∈Q;③0∈N;④0∈,其中正确的个数是(    )
                                           
{0}与的关系是(    )
A.{0}                   B.{0}∈       
C.{0}=                   D.{0}
={x|x2-2x-1=0,x∈R}的所有子集的个数为(    )
                                                    
={0,1,2}且={2},则集合A的真子集共有(    )
                                           
,集合A、B、C满足条件A∪B=A∪C,那么下列各式中一定成立的是(    )
∩B=A∩C                                 =C
∩(B)=A∩(C)                    D.(A)∩B=(A)∩C
,命题B的逆命题是C,则C是A的逆命题的(    )
                                  
“+ 是无理数”时,反设正确的是(    )