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Help me pls :D Dau coroana

Help Me Pls D Dau Coroana class=

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Carmensoho17ask
AUB={1,2,3,4,5,6,7,9,11,13}
A|~|B={3,5,7}
A-B={2,4,6}
B-A={1,9,11,12}
AUB ={ 1 2 3 4 5 6 7 9 11 13}
A intersectat cu B ={ 3, 5,7}
A-B= { 2 4 6}
B-A= { 1 9 11 13}

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