己知M={(x,y)|x∈R,y∈R且y≠x+2},N={(x,y)|x∈R,y∈R且y≠-x},I={(x,y)|x∈R,y∈R},则CI(M∪N)=______.-数学

题目简介

己知M={(x,y)|x∈R,y∈R且y≠x+2},N={(x,y)|x∈R,y∈R且y≠-x},I={(x,y)|x∈R,y∈R},则CI(M∪N)=______.-数学

题目详情

己知M={(x,y)|x∈R,y∈R且y≠x+2},N={(x,y)|x∈R,y∈R且y≠-x},I={(x,y)|x∈R,y∈R},则CI(M∪N)=______.
题型:填空题难度:偏易来源:不详

答案

CI(M∪N)=(CIM)∩(CIN)
CIM=M={(x,y)|x∈R,y∈R且y=x+2},
CIN={(x,y)|x∈R,y∈R且y=-x},
(CIM)∩(CIN)={(x,y)|x∈R,y∈R且y=x+2且y=-x}={-1,1}
故答案为:{-1,1}.

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