Question

Represent $A_6$ = {$x$ : $x=\frac{n}{n+2}$; $nϵN$ and $n>5$} in Roster form.

Answer 1

On subsituting values of $n>6$ that is $6,7,8,\mathrm{9....}$ we get $\frac{6}{6+2};\frac{7}{7+2};\frac{8}{8+2};\frac{9}{9+2}.............$
So, the set is A6 $=$ { $\frac{3}{4};\frac{7}{9};\frac{4}{5};\frac{9}{11}.............$}