Question: For the linear time - invariant discrete - time system whose difference equation is given as y [ n ] - y [ n -

For the linear time-invariant discrete-time system whose difference equation is given as y[n]-y[n-2]=2x[n]-4x[n-1]; a) Draw the unit impulse response of the system (for the range of n 0-3). b) Draw a block diagram of the system. (x ; input , y ; output)

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