railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Discrete Time Signals and Systems Characteristic of Systems
The discrete time system described by y(n) = x(n2) is
1
causal, linear and time varying
2
causal, non-linear and time varying
3
non-causal, linear and time-variant
4
non-causal, non-linear and time-variant