What is the z-transform of the signal defined as x(n)=u(n)-u(n+N)? – McqOptions

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1.	What is the z-transform of the signal defined as x(n)=u(n)-u(n+N)?
A.	( frac{1+z^N}{1+z^{-1}} )
B.	( frac{1-z^N}{1-z^{-1}} )
C.	( frac{1+z^{-N}}{1+z^{-1}} )
D.	( frac{1-z^{-N}}{1-z^{-1}} )
Answer» E.

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