If x(n)=an, then what is one sided z-transform of x(n-2)? – McqOptions

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1.	If x(n)=aⁿ, then what is one sided z-transform of x(n-2)?
A.	( frac{z^{-2}}{1-az^{-1}} + a^{-1}z^{-1} + a^{-2} )
B.	( frac{z^{-2}}{1-az^{-1}} a^{-1}z^{-1} + a^{-2} )
C.	( frac{z^{-2}}{1-az^{-1}} + a^{-1}z^{-1} a^{-2} )
D.	( frac{z^{-2}}{1+az^{-1}} + a^{-1}z^{-1} + a^{-2} )
Answer» B. ( frac{z^{-2}}{1-az^{-1}} a^{-1}z^{-1} + a^{-2} )

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