设全集U=R,M={x| x^2>4},N={x|2/(x-1)≥1},求M∪N及N ∩(Cu M)
设全集U=R,M={x| x^2>4},N={x|2/(x-1)≥1},求M∪N及N ∩(Cu M)
已知全集U=R,集合M={x|x≥1},N={x|x+1/(x-2)≥0},则Cu(M∩N)=
1.设全集U=R,集合M={x|x>3},N={x|x>-2},则Cu(M∩N)=?
设全集U=R,(1)M={x||2x+1|>1},N={x|3+x/(1-x)大于等于0},求M∪N
设全集U={(x,y)|x,y x∈R },集合M={(x,y) },N={(x,y) } ,那么CU M∩CU N等于
设全集U=R,集合M={x/x^2>9},N={-1
设全集U是实数集R,M={x|x^2>4},N={x|log2(x-1)
已知集合U=R,M=|x|x≥1|,N=|x|x<-1|,则Cu(M∩N)为?(Cu为全集U中M∩N的补集)
已知全集U=R,M={x丨{3-x>0,5-≤4},N={x丨-2<x≤3}求①MUN和M∩N;②M∩(CuN)和(Cu
设全集为R,集合M={x|2x>x+3},N={x|-1
1.设全集U=R.M={m|方程mx^2-x-1=0有实数根}N={n|方程x^2-x+n=0有实数根},求(CuM)∩
设全集U={(x,y)│x,y∈R},集合M={(x,y)│y-3/x-2=1},N={(x,y)│y≠x+1},求Cu