If we consider a sequence of FIR filer with system function Hm(z)=Am(z – McqOptions

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1.	If we consider a sequence of FIR filer with system function H_m(z)=A_m(z), then what is the definition of the polynomial A_m(z)?
A.	(1+ sum_{k=0}^m _m (k)z^{-k} )
B.	(1+ sum_{k=1}^m _m (k)z^{-k} )
C.	(1+ sum_{k=1}^m _m (k)z^k )
D.	( sum_{k=0}^m _m (k)z^{-k} )
Answer» C. (1+ sum_{k=1}^m _m (k)z^k )

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