a)
[tex] \frac{n}{5 } < \frac{4}{5} = > n =3.2.1[/tex]
b)
[tex] \frac{6}{n} > \frac{6}{7} = > n = 6.5.4.3.2.1[/tex]
c)
[tex] \frac{1}{4} < \frac{1}{n} < \frac{1}{2} = > n = 3[/tex]
d)
[tex] \frac{5}{8} < \frac{5}{n} < \frac{5}{4} = > n = 7.6.5[/tex]
Sper ca te-am ajutat!