Question: Define what is a LINEAR AND INVARIANT SYSTEM IN DISCREETE TIME Let be the discrete signal defined by: X[n] = [1, 3, 1, -1] Draw

Define what is a LINEAR AND INVARIANT SYSTEM IN DISCREETE TIME Let be the discrete signal defined by:

X[n] = [1, 3, 1, -1] Draw the discrete signal represented by vertical lines with a small circle at its top terminal, note the figure should be similar to the following figure.

be the discrete signal defined by:X[n] = [1, 3, 1, -1] Draw

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