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.	( frac{1}{1+a} ) u(n)
B.	( frac{1}{1-a} ) u(n)
C.	( frac{1}{1+a} )
D.	( frac{1}{1-a} )
Answer» B. ( frac{1}{1-a} ) u(n)

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