The ROC of sequence in the Z.T. of sequence x[n] = an ∪ [n] is
A.z > a
B.z < a
C.|z| > a
D.|z| < a
Answer:C
The ROC of sequence in the Z.T. of sequence x[n] = an ∪ [n] is
A.z > a B.z < a C.|z| > a D.|z| < a