Computer · Signals and Systems
Which one of the following systems described by the given input-output relations is time-invariant?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1y[n] = n x[n]
- 2y[n] = x[n] - x[n - 1]✓
- 3y[n] = x[-n]
- 4y[n] = x[n] cos(2πf0n)
Correct answer
y[n] = x[n] - x[n - 1]
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