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Homework Help: Time invariant signal

  1. Feb 23, 2013 #1

    Can anyone help my to see why my solution is wrong because the in the solutions it says that it is not time invariant
  2. jcsd
  3. Feb 23, 2013 #2


    User Avatar
    2017 Award

    Staff: Mentor

    I don't understand what y_A and y_B are.

    Simple example:
    In general, those sums can be different.
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