M1 Lec5d|Time-Invariant and Time-Varying Systems: Problems solving section2

Signals And System
Classification of Systems
1. Linear Systems and Nonlinear Systems:
2. Time-Invariant and Time-Varying Systems:
3. Stable and Unstable Systems
4. Static and Dynamic Systems
5. Causal and Non-causal Systems
6. Invertible and Non-Invertible Systems
Topics .………
Quick Review of………..
Time-Invariant and Time-Varying Systems: Definition
Problem-solving section………..
Determine whether the system is Time-Varying or not

► (d^2 y(t))/〖dt〗^2 +2ty(t)=t^2 x(t)
► 2dy(t)/dt+5y(t)=x^2 (t)
► y[n]=x[n]+x[n−1]
► y[n]=3y^2 [n−1]−nx[n−1]+4x[n−1]−2x[n+1];
► y[n]=x[n]u[n]
► y[n]=x[−n]