Răspuns:
a)D12={1,2,3,4,6,12}
b)M3={0,3,6,9,12,15,18,21,24.......etc........}
c)D12-multime finita
M3-multime infinita
d)Mp={0×p,1×p,2×p,3×p,4×p,5×p......etc......}