What is the particular solution of the first order difference equation – McqOptions

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1.	What is the particular solution of the first order difference equation y(n)+ay(n-1)=x(n) where \|a\|<1, when the input of the system x(n)=u(n)?
A.	1/(1+a) u(n)
B.	1/(1-a) u(n)
C.	1/(1+a)
D.	1/(1-a)
Answer» B. 1/(1-a) u(n)

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