A={1,3,5,7,9}
B={4,6,8,10}
C={0,1,2,3,4}
AuB= {1,3,4,5,6,7,8,9,10}
AuC={ 0,1,2,3,4,5,7,9}
Au ao contrário C= { 1,3}
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A={1,3,5,7,9}
B={4,6,8,10}
C={0,1,2,3,4}
AuB= {1,3,4,5,6,7,8,9,10}
AuC={ 0,1,2,3,4,5,7,9}
Au ao contrário C= { 1,3}