(d) Let n be the sample number and u[n] be the unit step function (-
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(d) Let n be the sample number and u[n] be the unit step function (-
(d) Let n be the sample number and u[n] be the unit step function (-<n<0). A rectangle window function is given by win] =u[n] - u[n-8) and a cosine function is given by x[n] -0.54 +0.46cos (21-7) Applying the window function, calculate the windowed cosine function [n]. wn] (4 marks 8
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