Respostas

2013-10-02T18:55:00-03:00
A = {0,1, 2, 3, 4, 5, 6, 7, 8}
B = { 3, 5, 7, 8}

A - B = {0, 1, 2, 4, 6,} 
A = {0,1, 2, 3, 4, 5, 6, 7, 8}
B = { 3, 5, 7, 8}

A - B = {0, 1, 2, 4, 6,}