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={1,2,3}, ={2,4},则如图阴影部分表示的集合为( ) A.{0,2}B.{0,1,3} {1,3,4} {2,3,4}
{2,4,5} {1,3,4} {1,2,4} {2,3,4,5}
={1,2}, ={2,3},则∁U.(A.∪B.)等于( ) A.{1,3,4}B.{3,4} {3} {4}
={1,2}, ={2,3,4},那么集合A.∩B.等于( ) A.{2}B.{2,3} {1,2,3} {1,2,3,4}
={1,2,3},集合 ={2,3,4},则A.∩B.等于( ) A.{2,3}B.{1,2} {3,4} {1,2,3,4}
{1,2,3,4} {1,3,4} {3,4} {2,4}
{2,4,5} {1,3,4} {1,2,4} {2,3,4,5}
={1,2}, ={2,3},则∁U.(A.∪B.)=( ) A. {1,3,4}B. {3,4} {3} {4}
{1,2,3} {1,3,4} {1,2,4} {2,3,5}
{1,3} {1,2,3} {1,3,4} {1,2,3,4}
{1,2,3,4} {1,2,3} {2,3,4} {1,3,4}
{1,2,3,4} {1,2,3} {2,3,4} {1,3,4}
={1,2}, ={2,3},则∁U.(A.∪B.)=( ) A.{1,3,4}B.{3,4} {3} {4}
={1,2,3}, ={2,3,4},则A.∪B.=( ) A. {1,2,3,4} B. {1,2,3} {2,3,4} {1,3,4}