Question

Which of the following systems are dynamical? Stable? Causal? Time-invariant? Linear? 1. y(t) = 5x(t) 2....

Which of the following systems are dynamical? Stable? Causal? Time-invariant? Linear?

1. y(t) = 5x(t)

2. y(t) = x(t)^4

3. y(t) = x(t−1)^2

4. dy/dt = x(t)

5. dy/dt = y(t) + x(t)

6. dy/dt = −y(t) + x(t)^2

7. dy/dt = −y(t) + x(t + 4)

8. dy/dt = tx(t)

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