1.

The z-transform of 3n u[-n-1] is ___________

A. ( frac{z}{3-z} ), |Z|>3
B. ( frac{z}{3-z} ), |Z|<3
C. ( frac{3}{3-z} ), |Z|>3
D. ( frac{3}{3-z} ), |Z|<3
Answer» C. ( frac{3}{3-z} ), |Z|>3


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