Răspuns:
a) n={0,1}
b) n={0,1}
c) n={3,4,5,...∞}
Explicație pas cu pas:
[tex]a) \frac{n}{3} <\frac{2}{3} ,n<2,n={0,1}\\\\b) \frac{7}{4} >\frac{4n+5}{4} |-5,\frac{2}{4} >\frac{4n}{4} ,\frac{2}{4} >\frac{\frac{n}{4} }{4} ,\frac{2}{4} >\frac{n}{1} ,0.5>n,n=0,1. , \frac{2}{4} >\frac{0}{4} ,\frac{2}{4} >\frac{1}{4} \\\\c) \frac{7}{n} >\frac{7}{2} ,[/tex]
n>2,n={3,4,5,6,...67,...10596767,...,∞}
Succes! :)
