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ECE · Q312

Signal Processing

Engineering and GATE · ECE · question 312

Q312

Which one of the following systems is a causal system?

A.
y(t) = sin(t + 3)
B.
y(t) = u(t) + u(t - 1)
Answer
C.
y(t) = u(t) + u(t + 1)
D.
y(t) = sin(t - 3) + sin(t + 3)

Answer: Option B

Solution

Answer: Option B
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