The input – output relation of a system is given as follows:
y(n) – 2y(n – 1) = x(n)
which of the following statements is correct?
1
The nature of the system is FIR filter
2
The nature of the inverse system is FIR filter.
3
The nature of inverse system is IIR filter
4
The nature of the system is neither FIR and nor IIR filter