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Discussion :: Signals and Systems

  1. ROC of sequence x[n] = (3)n ∪[n] + (4)n ∪[- n - 1]

    2. A.
    |z| > 4
    B.
    3 < |z| < 4
    C.
    |z| < 4
    D.
    |z| > 3

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    Answer : Option B

    Explanation :

    x[n] = (3)n ∪(n) + (4)n ∪(- n - 1)

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