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For subsets A, B of a set X defined A $ \times $ B as A $ \times $ B = (A $ \cap $ B) $ \cup $ (X – A) $ \cap $ (X – B), mark in Venn diagram Find X - B

1 Answer

((X – A) $ \cap $ (X – B)) = (A $ \cup $ B)$^C$
A $ \times $ B = (A $ \cap $ B) $ \cup $ ((X – A) $ \cap $ (X – B))
= $ \cup $
answered Jun 24, 2014 by thanvigandhi_1
 

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