Question: What is the steady-state response of the system described by the difference equation y(n)=0.5y(n-1)+x(n) when the input signal is x(n)= 10cos(?n/4)u(n) and the system is initially at rest?
Options
A : 13.56cos(?n/4 -28.7o)
B : 13.56cos(?n/4 +28.7o)u(n)
C : 13.56cos(?n/4 -28.7o)u(n)
D : None of the mentioned
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