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For a DT-system suppose that y[n] = cos {(/4) x[n]} Find and draw the impulse response for this system?

For a DT-system suppose that y[n] = cos {(/4) x[n]} Find and draw the impulse response for this system?

For a DT-system suppose that y[n] = cos {(/4) x[n]} Find and draw the impulse response for this system?

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