Question: What is the possible representation of x(t) if xl(t)=a(t)e(j?(t))?
Options
A : x(t) = a(t) cos[2?Fct – ?(t)]
B : x(t) = a(t) cos[2?Fct + ?(t)]
C : x(t) = a(t) sin[2?Fct + ?(t)]
D : x(t) = a(t) sin[2?Fct – ?(t)]
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