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Let A={1,4,7,10,13,16,19}, B={1,2,3,4,5,6}, C={2,8,14,20}, then n[A×(B′∩C′)′]=

Answer» Let A={1,4,7,10,13,16,19}, B={1,2,3,4,5,6}, C={2,8,14,20}, then n[A×(BC)]=


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