Problem Sets - Signals

OWY 1.13) Let $x(t) = \delta(t+2)-\delta(t-2)$. Find the energy of $y(t) = \int_{-\infty}^t x(\tau) d \tau$.

OWY 1.16) Let $y[n]=x[n] x[n-2]$.

  • a) Is the system memoryless?
  • b) Determine the output of the system when the input is $A \delta[n]$, where $A$ is any real or complex number
  • c) Is the system invertible
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