题目内容

设集合U={(x,y)｜x∈R,y∈R},A={(x,y)｜2x-y+m>0},B={(x,y)｜x+y-n≤0}，那么点P(2，3)∈A ∩(CUB)的充要条件是

    A.m>-1且n<5                                          B.m<-1且n<5

    C.m>-1且n>5                                                                                                                      D.m<-1且n>5

A

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设集合u={(x, y)|x∈R, y∈R},A={(x, y)|2x-y+m＞0},B={(x, y)|x+y-n≤0},那么点P(2,3)∈A∩( UB)的充要条件是……(　　)

A. m＞-1,n＜5

B. m＜-1,n＜5

C. m＞-1,n＞5

D. m＜-1,n＞5

设集合u={(x,y)|x∈R,y∈R},A={(x,y)|2x-y+m＞0},B={(x,y)|x+y-n≤0},那么点P(2,3)∈A∩(B)的充要条件是(　　)

A.m＞-1,n＜5

B.m＜-1,n＜5

C.m＞-1,n＞5

D.m＜-1,n＞5

设集合U={(x,y)｜x∈R,y∈R},A={(x,y)｜2x-y+m>0},B={(x,y)｜x+y-n≤0}，那么点P(2，3)∈A ∩(CUB)的充要条件是

A.m>-1且n<5                        B.m<-1且n<5

C.m>-1且n>5                        D.m<-1且n>5

 

设集合U={(x,y)｜x∈R,y∈R},A={(x,y)｜2x-y+m>0},B={(x,y)｜x+y-n≤0}，那么点P(2，3)∈A∩(CUB)的充要条件是


  1. A.
    m>-1且n<5
  2. B.
    m<-1且n<5
  3. C.
    m>-1且n>5
  4. D.
    m<-1且n>5
设集合U={(x,y)|x∈R,y∈R},A={(x,y)|2x-y+m＞0},B={(x,y)|x+y-n≤0},则点P(2,3)∈A∩(B)的充要条件是(    )

A.m＞-1且n＜5                           B.m＜-1且n＜5

C.m＞-1且n＞5                           D.m＜-1且n＞5

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