Jawabanmu

2014-02-09T17:31:38+07:00
A = (2,3,5,7,11,13,17, ...)
B= (2,4,6,8,10,12,14,...)
A irisan B = (2)
A gabungan B =(2,3,4,5,6,7,8,10,11,12,13,14,17,....)
1 2 1