A linear time invariant system is characterized by the system function – McqOptions

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1.	A linear time invariant system is characterized by the system function H(z)= ( frac{1}{1-0.5z^{-1}}+ frac{2}{1-3z^{-1}} ). What is the h(n) if the system is stable?
A.	(0.5)<sup>n</sup>u(n)-2(3)<sup>n</sup>u(n)
B.	(0.5)<sup>n</sup>u(-n-1)-2(3)<sup>n</sup>u(-n-1)
C.	(0.5)<sup>n</sup>u(-n-1)-2(3)<sup>n</sup>u(n)
D.	(0.5)<sup>n</sup>u(n)-2(3)<sup>n</sup>u(-n-1)
Answer» E.

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