Question

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

Answer 1

(x-4)/2<x
x-4<2x
x-2x<4
-x<4           (-1)
x>-4

x≤5-x
x+x≤5
2x≤5
x≤5/2
x≤2,5
deci x∈(-4,2,5]
A={-3,-2,-1,0,1,2}