What is the condition on the system function of a linear phase filter – McqOptions

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1.	What is the condition on the system function of a linear phase filter?
A.	H(z)=\(z^{-N} H(z^{-1})\)
B.	H(z)=\(z^N H(z^{-1})\)
C.	H(z)=\(±z^N H(z^{-1})\)
D.	H(z)=\(±z^{-N} H(z^{-1})\)
Answer» E.

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