If H(f) = \(\frac{y(t)}{x(t)}\), then for this to be true x(t) is ___

1.	If H(f) = \(\frac{y(t)}{x(t)}\), then for this to be true x(t) is ___________
A.	exp\((\frac{j2nf}{t})\)
B.	exp\((-\frac{j2nf}{t})\)
C.	exp(j2nft)
D.	exp(-j2nft)
Answer» D. exp(-j2nft)

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