Răspuns:
Explicație pas cu pas:
n/2 < 5/3
n < 10/3
n = 0; 1; 2; 3
_________
2/(n + 1) > 3/7
2*7 > 3(n + 1)
14 > 3n + 3
11 > 3n
n < 11/3
n = 0; 1; 2; 3
____________
3/4 > (n + 2)/11
3*11 > 4(n + 2)
33 > 4n + 8
25 > 4n
n < 25/4
n = 0; 1; 2; 3; 4; 5; 6
_______________
5/6 < 4/(2n + 1)
5(2n + 1) < 6*4
10n + 5 < 24
10n < 19
n < 19/10
n = 0; 1