Question

Qual a união de N com Z?

Answer 1

N = { 0, 1, 2,3,4,5,6,7,8,...}
Z= { ...-8,-7,-6,-5,-4,-3,-1,0,1,2,3,4,5,6,7,8,...}
N união z = { ...-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,...}