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Homework Help: Signals: Determing x(t) (Time reversal, shifting, expansion)

  1. Oct 15, 2012 #1
    1. The problem statement, all variables and given/known data

    See first figure attached

    2. Relevant equations

    3. The attempt at a solution

    See 2nd figure attached.

    In part (b) it asks me to sketch the even portion of the original signal.

    How do I know what that is?

    I've sketched x(t) in my work and I know that the even portion of x(t) is,

    [tex]x_{e}(t) = \frac{1}{2}(x(t) + x(-t))[/tex]

    but I can't simply describe x(t) for all values of t nicely. I can as I have in the figure, with different functional form for different values of t.

    How do I do parts (b) and (c)?

    Attached Files:

  2. jcsd
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