Question

Determine whether or not each of the following signals is periodic. If a signal
is periodic specify its fundamental period.
a) ?1
(?) = ??10j?
b) ?2(?) = ?
(−1+?)?
c) ?3[?] = ?
?7??
d) ?4[?] = 3?
?3?(?+
1
2
)
5
e) ?5[?] = 3?
?3
5
(?+
1
2
)

Answer 1

a) is periodic with period

b) is not periodic

c) is periodic with period

d) (expression is not clear)

This signal is periodic with period

e) (expression is not clear) is periodic with period

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