Jawabanmu

2014-08-11T22:11:33+07:00
2014-08-11T22:18:01+07:00
A. {1,2,3,4},{2,3,4,5},{3,4,5,1},{4,5,1,2},{5,1,2,3}=5
b. {1,2,3,4}=1