For a message signal m(t) = cos (2pfmt) and the carrier frequency fc, – McqOptions

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1.	For a message signal m(t) = cos (2pfmt) and the carrier frequency fc, which of the following represents a single side band (SSB) signal?
A.	cos (2pfmt) cos (2pfct)
B.	cos (2pfct)
C.	cos [2p(fc + fm) t]
D.	[1 + cos (2pfmt) cos (2pfct)]
Answer» D. [1 + cos (2pfmt) cos (2pfct)]

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