What is the signal x(n) whose z-transform X(z)=log(1+az-1);|z|>|a|? – McqOptions

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1.	What is the signal x(n) whose z-transform X(z)=log(1+az-1);\|z\|>\|a\|?
A.	((-1)^n. frac{a^n}{n}.u(n-1) )
B.	((-1)^n. frac{a^n}{n}.u(n+1) )
C.	((-1)^{n-1}. frac{a^n}{n}.u(n-1) )
D.	((-1)^{n-1}. frac{a^n}{n}.u(n+1) )
Answer» D. ((-1)^{n-1}. frac{a^n}{n}.u(n+1) )

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