Long description: figout7a

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A diagram representing the difference between two unit step functions, shown as a dashed line segment from one to three.

Alt text: A diagram representing the difference between two unit step functions, shown as a dashed line segment from one to three.

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  • The image displays the expression \(\Delta u(t-1) - u(t-3)\) above a graphical representation.
  • The graph consists of a dashed, horizontal line segment spanning from the value of one on the horizontal axis to the value of three on the horizontal axis.
  • The function \(u(t)\) represents the unit step function, and the displayed graph illustrates a difference between two such functions at different time shifts.

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