Q.

Determine the nature of the signal: x(t) = e-0.2t [cosΩt + jsinΩt].

A. exponentially decaying sinusoidal signal
B. exponentially growing sinusoidal signal
C. sinusoidal signal
D. exponential signal
Answer» A. exponentially decaying sinusoidal signal
Explanation: clearly the signal has negative exponential ⇒ decaying exponential signal. the signal also has sinusoidal component.
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