a) Causal
b) Anti-causal
c) Non-causal
d) Cannot be determined
The system \(x(k) = 7(\frac{1}{3})^k \,u(-k-1) – 6(\frac{1}{2})^k \,u(k)\) is ___________
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The system \(x(k) = 7(\frac{1}{3})^k \,u(-k-1) – 6(\frac{1}{2})^k \,u(k)\) is ___________
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