Question

Ajutati-ma va rog!

1) 7 ∈ { x|2 ≤x<7}
2) 2 ∈ { x|x divizibil cu 16}

Answer 1

1) 7 e {2,3,4,5,6,}         2) 2 e{1,2,4,8,16}

Answer 2

1) 7∈ multimii daca x e 2,3,4,5,6 
2) 2∈{1,2,4,8,16}