A∪B =｛1,2,3,4,5｝,
所以 Cu（A∪B）==｛6｝,
并集和補集符號你應(yīng)該明白吧.
設(shè)全集U=｛1,2,3,4,5,6｝,子集A=｛1,3,5｝,B=｛2,3,4,5｝,那么Cu（A∪B）=
設(shè)全集U=｛1,2,3,4,5,6｝,子集A=｛1,3,5｝,B=｛2,3,4,5｝,那么Cu（A∪B）=
數(shù)學(xué)人氣：207 ℃時間：2020-04-17 11:16:10
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