a) Ratio of period of the first signal to period of other signals should be constant
b) Ratio of period of the first signal to period of other signals should be finite
c) Ratio of period of the first signal to period of other signals should be real
d) Ratio of period of first signal to period of other signal should be rational
What is the necessary and sufficient condition for a sum of a periodic continuous time signal to be periodic?
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What is the necessary and sufficient condition for a sum of a periodic continuous time signal to be periodic?
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