Multiple choice

Let $x(n) = \left( \dfrac{1}{2} \right) ^ n u(n), \ y(n) = x^2(n)$ and $Y (e^{j\omega})$ be the Fourier transform of y(n)  Then $Y(e^{j0})$ is

  1. $\dfrac{1}{4}$

  2. 2

  3. 4
  4. $\dfrac{4}{3}$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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