Z-Transforms

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Multiple Choice

What is the Z-Transform of the sequence (x[n] = a^n), where (a) is a constant?

  1. \(X(z) = \frac{z}{z - a}\)
  2. \(X(z) = \frac{z}{z + a}\)
  3. \(X(z) = \frac{1}{z - a}\)
  4. \(X(z) = \frac{1}{z + a}\)
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