Question

1. Elementele mulţimii A = { x = N* | 2x+3≤9} sunt:​

Answer 1

Răspuns:

A = { x = N* | 2x+3≤9}

2x+3 ≤ 9

2x ≤ 9-3

x ≤ 6:2

x ≤ 3

x ∈ {1,2,3}