The z-transform of \(x\left( n \right) = \left\{ {\begin{array}{*{20}{c}} 2&4&5&7&0&1\\ \;&\;& \uparrow &\;&\;&\; \end{array}} \right\}\)
1
2z2 + 4z + 5 + 7z + z3, z ≠ ∞
2
2z-2 + 4z-1 + 5 + 7z + z3, z ≠ ∞
3
2z-2 + 4z-1 + 5 + 7z + z3, 0 < |z| < ∞
4
2z2 + 4z + 5 + 7z-1 + z-3, 0 < |z| < ∞
5
None of these