设A={0.1.3.4}.B={1.2.10.17.19}.试写出一个从集合A到集合B的映射f:x→________________________ 查看更多

 

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设U={1,2,3,4,5},A={x|x2-5x+6=0},B={x|x2-6x+5=0},UA=________,UB=________.

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设U={0,1,2,3,4},A={0,1,2,3},B={2,3,4},则(A)∪(B)=

[  ]

A.{0}

B.{0,1}

C.{0,1,4}

D.{0,1,2,3,4}

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设A={0,2,4,6},A={-1,-3,1,3},B={-1,0,2},求B.

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设U={0,1,2,3,4},A={0,1,2,3},B={2,3,4},则(CUA)∪(CUB)=

[  ]
A.

{0}

B.

{0,1}

C.

{0,1,4}

D.

{0,1,2,3,4}

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设A={0,2,4,6},UA={-1,-3,1,3},UB={-1,0,2},求B.

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