If two sets A and B are disjoint sets then A - B =
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Step-by-step explanation:
Two sets are said to be disjoint if they have no element in common. ... The number of elements in the union (A∪B) is simply the sum of the number of elements in A and the number of elements in B: |A ∪ B| = |A| + |B|.
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A-B = 0
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