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Duaa-07
Lv 6
A and B be subsets of the finite universal set U. Show that |A ∩ B| = |U| − |A| − |B| + |A ∩?
is it even correct?
Update:
A ∩ B| = |U| − |A| − |B| |A ∩B|
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- ?Lv 78 years agoFavorite Answer
this formula does not seem correct : |A ∩ B| is on both sides...
please rephrase.
michael
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