Question: Given the discrete signal x[n] = 0.5 n u[n]. (a) Use the function stem to plot the signal x[n] for n = 5 to 20.

Given the discrete signal x[n] = 0.5nu[n].

(a) Use the function stem to plot the signal x[n] for n = ˆ’5 to 20.

(b) Is this a finite-energy discrete-time signal? i.e., compute the infinite sum

Σ Κ |x[n] εχ n=-00 ||

(c) Verify your results by using symbolic MATLAB to find an expression for the above sum.

Σ Κ |x[n] εχ n=-00 ||

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