Hi I'm supposed to determine if $y[n]=nx[n]$ is invertible.
I found an answer that says that it's not because $x[n]=δ[n]$ and $x[n]=cδ[n]$ (c is a constant) gives the same output.
Could someone please explain why that is?
2026-04-06 14:37:53.1775486273
Signals and systems kroneckers delta
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