Jawabanmu

2014-04-26T14:45:00+07:00
2,6 3,5 4,4 5,3 6,2. jadi ada 5 yg brjumlah 8
2014-04-26T14:50:32+07:00
N(A)={2,6} ,{3,5}, {4,4} ,{5,3}, {6,2}
      =5