Question

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#離散數學 #集合運算和集合論定律
請問(d)畫線地方是怎麼變的 用的什麼集合論定律？

U (0 DU00B)
d) Ā U BU CAOBOC)
Lal An (B-A)-An (BĀ) = BOIAA) - BOO = Ø
(b) (AB) UCABA CODUCĀB)
= (AOBU (Ā OB) Absorption Law
= (AVĀ), B = UnB - B
(C) (A-B) U CAOB)= (A BUCAOB) = AO (BUB) = AO U = A
dĀ UBU CAOBOC)= (AOBULAB) 07]
= [[ABU CAO B)]n[LADB) U C] = (AO BUT = ĀU BUC

離散數學 集合運算和集合論定律 集合論定律

Answer 1

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shen

(A交集B)'聯集(A交集B)=S(整個樣本空間)