Question

Exercițiul 31 Mulțumesc mult

Answer 1

la primul a=15,16,17,18,19
Proba: 15-1=14
16-1=15
17-1=16
18-1=17
19-1=18
$14 \leqslant 14,15,16,17,18 \leqslant 18$

la al doilea a= 3,4,5
Proba: 15-3=12
15-4=11
15-5=10
$10 \leqslant 10,11,12 \leqslant 12$