railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Introduction To Signals and Systems Types of Systems
A cascade of three Linear Time Invariant systems is causal and unstable. From this, we conclude that
1
Each system in the cascade is individually causal and unstable
2
At least one system is unstable and at least one system is causal
3
At least one system is causal and all systems are unstable
4
The majority are unstable and the majority are causal