Question

F(x) = 2x dimana x (anggota himpunan dari) {1, 2, 3, 4}

Answer 1

F(x) = 2x, x = {1,2,3,4}
f(1) = 2 × 1 = 2
f(2) = 2 × 2 = 4
f(3) = 2 × 3 = 6
f(4) = 2 × 4 = 8
f(x) = {2,4,6,8}