PDF chapter test TRY NOW
If \(A = \{\)0, 7, 12, 19, 21\(\}\), \(B = \{\)5, 7, 11, 14, 19\(\}\) and \(C = \{\)0, 5, 19, 22\(\}\), then prove De Morgan's law of set difference and hence determine \((A - B) \cup (A - C)\).
1. De Morgan's law of set difference:
2. \((A - B) \cup (A - C)\)
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