Condition of periodicity for a continuous time signal

Q.  Which mathematical notation specifies the condition of periodicity for a continuous time signal?
- Published on 30 Nov 15

a. x(t) = x(t +T0)
b. x(n) = x(n+ N)
c. x(t) = e-αt
d. None of the above

ANSWER: x(t) = x(t +T0)

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