Question 1
Which of the following describes a causal system?
Question 2
What is the primary difference between continuous-time and discrete-time signals?
Question 3
Which of the following operations combines two signals to produce a third signal that expresses how the shape of one is modified by the other?
Question 4
If a system's output $y[n]$ is related to its input $x[n]$ by the equation $y[n] = 2x[n] + 3$, is this system linear?
Question 5
What is the primary purpose of using transform methods (like Laplace or Fourier) in signals and systems analysis?
