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Revision as of 10:54, 3 May 2013
Determine z-transform of the following sequence. x[n]=(1/2)^(n+1)u[n+3]
X(z)=sigma x[n]z^(-n)=sigma (1/2)^(n+1)z^(-n)=sigma (1/2)^(n-2)z^(-n+3)=4x^3/(1-(1/2)z^(-1)), |z|>1/2
Please place solutions and/or comments below.