0 votes 0 votes The $z$-transform of a system is $H(z)=\frac{z}{z-0.2}.$ If the ROC is $|z|<0.2$, then the impulse response of the system is $(0.2)^{n} u[n]$ $(0.2)^{n} u[-n-1]$ $-(0.2)^{n} u[n]$ $-(0.2)^{n} u[-n-1]$ Others gate2004-ec + – admin asked Sep 25, 2022 • edited Nov 30, 2023 by makhdoom ghaya admin 46.4k points 87 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.