1. Engineering
  2. Electrical Engineering
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Consider the following systems and find the response to xl (t) = u(t) and X2(t) = u(t-1). Determine from the corresponding outputs whether the system is time-varying or not (a) y(t)=x(t)cos(mt) (b) y(t) = x(t)la(t)-11(t-21 (c) y(t) = 0.51x(t) + x(t-1 )1

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