What is the unit sample response of the system described by the differ – McqOptions

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1.	What is the unit sample response of the system described by the difference equation y(n)=0.5y(n-1)+2x(n)?
A.	0.5(2)<sup>n</sup>u(n)
B.	2(0.5)<sup>n</sup>u(n)
C.	0.5(2)<sup>n</sup>u(-n)
D.	2(0.5)<sup>n</sup>u(-n)
Answer» C. 0.5(2)<sup>n</sup>u(-n)

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