0 votes 0 votes The impulse response a the system is $h(t)=t\:u(t).$ For an input $u(t-1)$, the output is $\dfrac{t^2}{2}u(t) \\$ $\dfrac{t(t-1)}{2}u(t-1) \\$ $\dfrac{(t-1)^2}{2}u(t-1) \\$ $\dfrac{t^2-1}{2}u(t-1)$ Signals and Systems gate2013-ee fourier-transform sampling-theorem + – piyag476 asked Feb 11, 2017 edited Sep 23, 2020 by go_editor piyag476 1.5k points answer comment Share See all 0 reply Please log in or register to add a comment.