1.已知全集U={0,1,2,3,4,5,6},A={0,2,4},则 =_____.
2.已知全集U={0,1,3,5,6,8},集合A={1,5,8},B={2},则( )∪B=_____.
3.已知全集U= R ,集合A={x|x<1},则 =_____.
4.已知全集U={a,b,c,d,e},A={a,b,d},B={a,c},那么 (A∩B)=_____.
5.设全集U={0,1,2,3,4},集合A={0,1,2,3},B={2,3,4},则 =_____.
1.若U={1,2,3,4},M={1,2},N={2,3},则 (M∪N)=().
A.{1,2,3}
B.{2}
C.{1,3,4}
D.{4}
2.(2015 年高考题)已知全集U={1,2,3,4,5},集合A={1,3,5},则 =().
A.⌀
B.{2,4}
C.{1,3,5}
D.{1,2,3,4,5}
3.已知全集U={0,1,2,3,4},集合A={1,3},则 =().
A.⌀
B.{2,4}
C.{0,1,3}
D.{0,2,4}
4.已知全集I={0,1,2,3,4},集合M={0,1,2,3},N={0,3,4},则 (M∩N)=().
A.{2,4}
B.{1,2,4}
C.{0,1}
D.{0,1,2,3}
1.已知全集U={a,b,c,d,e},集合A={a,b,d},B={a,c},那么 (A∪B)=_____.
2.已知全集U={-3,-2,-1,0,1,2},集合A={x|-1≤x≤1,x∈ Z },则 =_____.
3.已知全集U={n|n∈ N ,且n<5},集合A={1,3},B={2,4},则 (A∪B)=_____.
4.已知集合M={a,b,c,d},N={c,d,e,f},则(M∪N)∩N=_____.
5.已知全集U= R ,集合A={x|-1<x≤3},则 =_____.
1.已知全集U={不大于 8 的正整数},集合A={3,4,6},B={3,4,5},则 (A∪B)=().
A.{0,1,2,5,6,7,8}
B.{0,1,2,5,6,7}
C.{1,2,7,8}
D.{1,2,5,6,7}
2.已知集合A={x|x=2k+1,k∈ Z },则().
A.3∈A
B.3∉A
C.3⊆A
D.3⊂A
3.已知全集U={a,b,c,d,e},集合M={a,c,d},N={b,d,e},则( )∩( )=().
A.⌀
B.{d}
C.{a,c}
D.{b,e}
*4.已知全集U={ x|-2<x≤7,x∈ N },集合A={ x|-1<x≤4,x∈ Z },B={1,3,6},则 =().
A.{-1,1,3,5,6,7}
B.{5,7}
C.{1,3,5,6,7}
D.{1,3,5,7}
1.已知全集U={-2,-1,0,1,2,3,4},集合A={-2,0,1,2},B={-1,0,2,4},求 A, B, (A∩B), A∩B.
2.设全集U= R ,集合A={x|x-5<0},B={x|x>3},求 A∩B,A∪ B.
已知集合A={x|x<3},B={x|x≥1},全集U= R ,求 ,