Question

Determinati multimea A = { x ∈ Z | $\frac{x-4}{2}$ < x ≤ 5 - x } . Ma puteti ajuta ? Multumesc anticipat

Answer 1

(x-4)/2< x ≤ 5 - x|*2
x-4<2x≤10-2x
x-4<2x=>x>-4 (1)
2x≤10-2x=>4x≤10=>x≤10/4=>x≤2,5 (2)
Din (1)+(2)=>A={-3,-2,-1,0,1,2}.