The value of z(ak u[-k]) is _______________ – McqOptions

MCQOPTIONS

1.	The value of z(a^k u[-k]) is _______________
A.	( frac{z}{z-a} )
B.	( frac{z}{a-z} )
C.	( frac{z^2}{z-a} )
D.	( frac{a}{a-z} )
Answer» C. ( frac{z^2}{z-a} )

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