Jawabanmu

2014-08-12T19:05:46+07:00
S = {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}
A = {0,1,2,3,4,5,6,7}
B = {x|x≥8,x∈ S} ⇒ B = {8,9,10,11,12,13,14}