0 votes 0 votes The region of convergence of $Z$-transform of the sequence $\left(\frac{5}{6}\right)^{n} u(n)-\left(\frac{6}{5}\right)^{n} u(-n-1)$ must be $|z|<\frac{5}{6}$ $|z|>\frac{6}{5}$ $\frac{5}{6}<|z|<\frac{6}{5}$ $\frac{6}{5}<|z|<\infty$ Others gate2005-ec + – admin asked Sep 22, 2022 • edited Nov 30, 2023 by makhdoom ghaya admin 46.4k points 91 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.