Question

Determinati multimile:

a) A={ a | a ∈ ℕ, a | 10};
b) B={ b | ∈ ℕ* , 3 | b si b < 20};
c) C={ c | c ∈ ℕ , 3 < c < 9};
d) D={ d | d ∈ ℕ* , d ≤ 4};

Answer 1

a={1, 2, 5, 10}
b={3, 6, 9, 12, 15, 18}
c={4, 5, 6, 7, 8}
d={1, 2, 3, 4}