Question: 2. Complex Numbers: For discrete-time signals r(n) as given below, compute N-1 X(k) = Er(n)e-j2mkm/N n=0 for k = 0,..., N - 1. Simplify the

2. Complex Numbers: For discrete-time signals r(n) as given below, compute

2. Complex Numbers: For discrete-time signals r(n) as given below, compute N-1 X(k) = Er(n)e-j2mkm/N n=0 for k = 0,..., N - 1. Simplify the resulting expressions as much as possible. 1. e(n) = 8(n) 2. x(n) = (n-no) 3. x(n) = a" i ifo

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