SHOW THAT!!!!!!!!!!!!!!!!
(A U B)‘ U A=A ∩ B?
回答 (2)
Sol
宇集合:{1,2,3,4,5}
A={1,2,3},B={2,3,4}
=>
AUB={1,2,3,4}
(AUB)’={5}
(AUB)’UA={1,2,3,5}
A∩B={2,3}
(A U B)‘ U A<>A ∩ B
錯誤
收錄日期: 2021-04-30 19:18:44
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