The system x(k) = 7( ( frac{1}{3} ))k u(-k-1)-6( ( frac{1}{2} ))k u(k) – McqOptions

MCQOPTIONS

1.	The system x(k) = 7( ( frac{1}{3} ))^k u(-k-1)-6( ( frac{1}{2} ))^k u(k) is ___________
A.	Causal
B.	Anti-causal
C.	Non-causal
D.	Cannot be determined
Answer» D. Cannot be determined

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