A _________ sine wave is not useful in data communications; we need to send a _______signal. A) composite; single-frequency B) single-frequency; composite C) single-frequency;double-frequency D) none of the above

A _________ sine wave is not useful in data communications; we need to send a _______signal.
A)
composite; single-frequency
B)
single-frequency; composite
C)
single-frequency;double-frequency
D)
none of the above
by

1 Answer

Answer :

single-frequency; composite
by

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