0 votes 0 votes Consider a continuous-time system with input $x(t)$ and output $y(t)$ given by $y(t)=x(t) \cos (t)$. This system is Linear and time-invariant Non-linear and time-invariant Linear and time-varying Non-linear and time-varying Signals and Systems gate2016-ee-1 sampling-theorem scaling-properties causal-system + – makhdoom ghaya asked Jan 29, 2017 • recategorized Feb 7, 2017 by piyag476 makhdoom ghaya 9.4k points answer comment Share See all 0 reply Please log in or register to add a comment.