Considerando os conjuntos X={1,3,5,7,10}, X∪Y={1,2,3,5,6,7,9,10} e X∩Y={1,7,10}, assinale a alternativa que representa o conjunto Y e seus elementos:
Y={2,6,9}.
Y={1,2,3,6,9}.
Y={2,3,5,6,9}.
Y={1,2,3,5,6,7,9,10}.
Y={1,2,6,7,9,10}.
