Jawaban:

1. a. A = {1, 2, 3, 4, 5, 6, 7, 8, 9}

b. B = {1, 3, 5, 7, 9, 11, 13, 15}

c. C = {2}

d. D = {9, 10, 11, 12,…}

e. E = {-2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}

f. F = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}

2. a. A = {x| x < 30, x € bilangan ganjil kelipatan 3}

b. A = {3, 9, 15, 21, 27}