Question

1/2 mai mic ca (n+2)/4 mai mic ca5/3

Answer 1

(n+2)/4 > 1/2 → n/4 > 0 → n ∈ (0 +∞); (n+2)/4 - 5/3 >0 → 3n-14 < 0 → n < 14/3 → n ∈ (-∞; 14/3). Din cele doua relatii → n ∈ (0; 14/3)