集合M表示直线y-3=x-2,即y=x+1,除去(2,3)的点集;
集合N表示平面内不属于y=x+1的点集,
∴M∪N={(x,y)|x≠2,y≠3},
则∁U(M∪N)={(2,3)}.
故选:B.
设全集U={(x,y)|x,y∈R},集合M={(x,y)|y−3x−2=1},N={(x,y)|y≠x+1},则∁U(M∪N)等于( ) A.∅ B.{(2,3)} C.(2,3) D.{(x,y)|y=x+1}
设全集U={(x,y)|x,y∈R},集合M={(x,y)|
=1},N={(x,y)|y≠x+1},则∁U(M∪N)等于( )
A. ∅
B. {(2,3)}
C. (2,3)
D. {(x,y)|y=x+1}
y−3 |
x−2 |
A. ∅
B. {(2,3)}
C. (2,3)
D. {(x,y)|y=x+1}
数学人气:530 ℃时间:2019-10-23 06:23:59
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