0 votes 0 votes A linear discrete-time system has the characteristic equation, $z^{3}-0.81 z=0$. The system is stable is marginally stable is unstable stability cannot be assessed from the given information. Others gate1992-ec + – admin asked Sep 13, 2022 • edited Dec 1, 2023 by makhdoom ghaya admin 46.4k points 121 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.