Electronics and Communication Engineering - Exam Questions Papers - Discussion
Discussion Forum : Exam Questions Papers - Exam Paper 16 (Q.No. 22)
22.
Following information is given:
- x(z) has two poles at z =
and z = - 1 - x(1) = 1, x(- 1) = 1
- ROC includes
u(n) + (-1)n u(- n - 1)2 u(n) + (-1)n u(- n - 1)
u(n) + (-1)n u(- n - 1)2
u(n - 1) + (-1)n - 1 u(- n)
u(n - 1) + (-1)n - 1 u(- n)None
Discussion:
1 comments Page 1 of 1.
Govind said:
9 years ago
X(-1) will be = -1 then only b is correct.
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