Q. 18 Let x[n] = x[-n]. Let X(z) be the z -transform of x[n]. If 0.5 + j0.25 is a zero of X(z), which one of the following must also be a zero of X(z).
(A) 0.5 – j0.25
(B) 1/(0.5 + j0.25)
(C) 1/(0.5 – j0.25)
(D) 2 + j4
Answer: B
Explanation:
Q. 18 Let x[n] = x[-n]. Let X(z) be the z -transform of x[n]. If 0.5 + j0.25 is a zero of X(z), which one of the following must also be a zero of X(z).
(A) 0.5 – j0.25
(B) 1/(0.5 + j0.25)
(C) 1/(0.5 – j0.25)
(D) 2 + j4
Answer: B
Explanation:
