ECE 352 - HOME WORK 6

Question 1

Suppose that the Laplace transform X (s) of x (t) is rational, and it has a nonempty ROC. In addition, it has exactly four poles located at −2 + 2j, −2 − 2j, 2 + 2j, and 2 − 2j. For each of the following statements about x(t), determine ROC of X (s) :