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Normal
A U B={1,2,3,4,5,6,7,8,9}(A U B) ∩ C= {1,2,3,4,5,6,7,8,9} ∩ {1,3,4,6}={1,3,4,6}=C
A U B={1,2,3,4,5,6,7,8,9}
(A U B) ∩ C= {1,2,3,4,5,6,7,8,9} ∩ {1,3,4,6}={1,3,4,6}=C
