Question

Elementele multimii A={n € N\{2}/ n+2 supra n-2}

Answer 1

dau valori lui n si obtin
A={2/-2, 3/-1, 5/1, 6/4, 7/5.....
A={-1, -3, 5, 3/2, 7/5....}

Answer 2

n-2 | n+2
n-2 | n-2

n-2 | n+2-n+2
n-2 | 4
n-2 € diviziorilor lui 4
n-2 € {1;2;4} /+2
n € {3;4;6}
A={3;4;6}