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Determine the unit sample response of the system characterized by the difference equation y[n] = 4y[n 1] + 5y[n 2] + x[n] - 7x[n

Determine the unit sample response of the system characterized by the difference equation y[n] = 4y[n 1] + 5y[n 2] + x[n] - 7x[n 1] + 8x[n- 2] - Sketch the filter in the frequency domain from the following poles and zeros information

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