If the input signal of a linear system is $r(t) = 3 \sin(6t + 2)$, which of the following expressions could be its steady-state response? $7 \cos(2t + 3)$ None of them $2 \cos(6t)$ $-6 \sin(t + 7)$ $5 \sin(3t + 2)$
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For a linear time-invariant (LTI) system, if the input signal is a sinusoid of a certain frequency, the steady-state output signal will also be a sinusoid of the *same frequency*. The amplitude and phase of the output sinusoid may change, but the frequency remains Show more…
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