What is the inverse z-transform of X(z)= 1/(1-1.5z-1+0.5z-2 ) if ROC is 0.5<|z|<1?
A. -2u(-n-1)+(0.5)nu(n)
B. -2u(-n-1)-(0.5)nu(n)
C. -2u(-n-1)+(0.5)nu(-n-1)
D. 2u(n)+(0.5)nu(-n-1)
Answer:A
What is the inverse z-transform of X(z)= 1/(1-1.5z-1+0.5z-2 ) if ROC is 0.5<|z|<1?
A. -2u(-n-1)+(0.5)nu(n) B. -2u(-n-1)-(0.5)nu(n) C. -2u(-n-1)+(0.5)nu(-n-1) D. 2u(n)+(0.5)nu(-n-1)
Explanation: The partial fraction expansion of the given X(z) is