Find the set-builder form of the set \(A = \left\{ {\frac{1}{2},\frac{2}{3},\frac{3}{4},\frac{4}{5},\frac{5}{6},\frac{6}{7}} \right\}\)?
1
\(A = \left\{ {x\;:x = \frac{n}{{n + 1}}\;and\;1 \le n \in N \le 6\;} \right\}\)
2
\(A = \left\{ {x\;:x = \frac{n}{{n - 1}}\;and\;1 \le n \in N \le 6\;} \right\}\)
3
\(A = \left\{ {x\;:x = \frac{2n}{{n + 1}}\;and\;1 \le n \in N \le 6\;} \right\}\)
4
None of these
5
Not Attempted