Răspuns:
b) 5
Explicație pas cu pas:
[tex] \sqrt{3 \cdot n} \ \ \ numar \ \ rational; \ n \in \{1,2,3,...,100\} \\ [/tex]
3×3×1¹ = 3² => n = 3
3×3×2² = 6² => n = 12
3×3×3² = 9² => n = 27
3×3×4² = 12² => n = 48
3×3×5² = 15² => n = 75
3×3×6² = 18² => n = 108 > 100
[tex]\implies \bf n \in \{3,12,27,48,75\}[/tex]
