When is a complex exponential signal pure DC? – McqOptions

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1.	When is a complex exponential signal pure DC?
A.	Ïƒ = 0 and Î© < 0
B.	Ïƒ < 0 and Î© = 0
C.	Ïƒ = 0 and Î© = 0
D.	Ïƒ < 0 and Î© < 0
Answer» D. Ïƒ < 0 and Î© < 0

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