Jawabanmu

2014-09-11T01:04:12+07:00
1. a. {1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19}
    b. {1,2,3,4,5,6,7,8,9,10,11}
    c. {4,9,16,25,36,49,64,81}
    d. {2,4,6,8}
1 5 1