engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Discrete Time Signals and Systems
Consider the discrete-time signal:
\(x\left( n \right) = {\left( {\frac{1}{3}} \right)^n}u\left( n \right)\). Where
\(u\left( n \right) = \left\{ {\begin{array}{*{20}{c}} {1,\;\;n \ge 0}\\ {0,\;\;n < 0} \end{array}} \right.\).
A signal y(n) is defined as y(n) = x(-n). Then \(\mathop \sum \nolimits_{n = - \infty }^\infty y\left( n \right)\) equals toEnter numerical value using the virtual keypad. Round off where necessary.