Question: If the system function H(z) of a linear time-invariant system has a pole-zero diagram as shown in Figure and the system is causal, can the

If the system function H(z) of a linear time-invariant system has a pole-zero diagram as shown in Figure and the system is causal, can the inverse system Hi(z), where H(z) Hi(z) = 1, be both causal and stable? Clearly justify your answer,

Im Unit circle z-plane 1 Re

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