设集合X={0,1,2,4,5,7},Y={1,3,6,8,9},Z={3,7,8},那么集合(X∩Y)∪Z是( )A.{0,1,2,6,8}B.{3,7,8
题型:单选题难度:一般来源:不详
设集合X={0,1,2,4,5,7},Y={1,3,6,8,9},Z={3,7,8},那么集合(X∩Y)∪Z是( )A.{0,1,2,6,8} | B.{3,7,8} | C.{1,3,7,8} | D.{1,3,6,7,8} |
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答案
X∩Y={1},(X∩Y)∪Z={1,3,7,8}, 故选C |
举一反三
已知集合A={y|y=2-x,x<0},B={x|y=x},则A∩B=( )A.[1,+∞) | B.(1,+∞) | C.(0,+∞) | D.[0,+∞) |
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若集合A={x|>1},集合B={-1,0,1,2,3},则A∩B=______. |
设A={x|x>-2},B={x|x≥3},则A∪B=______. |
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若集合M={0,1},I={0,1,2,3,4,5},则CIM为( )A.{0,1} | B.{2,3,4,5} | C.{0,2,3,4,5} | D.{1,2,3,4,5} |
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