1.

What is the partial fraction expansion of X(z)= (1+z-1)/(1-z-1+0.5z-2 )?

A. (z(0.5-1.5j))/(z-0.5-0.5j) – (z(0.5+1.5j))/(z-0.5+0.5j)
B. (z(0.5-1.5j))/(z-0.5-0.5j) + (z(0.5+1.5j))/(z-0.5+0.5j)
C. (z(0.5+1.5j))/(z-0.5-0.5j) – (z(0.5-1.5j))/(z-0.5+0.5j)
D. (z(0.5+1.5j))/(z-0.5-0.5j) + (z(0.5-1.5j))/(z-0.5+0.5j)
Answer» C. (z(0.5+1.5j))/(z-0.5-0.5j) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (z(0.5-1.5j))/(z-0.5+0.5j)


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