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  • (cur | prev) 08:10, 15 October 2008Longja (Talk). . (441 bytes) (+441). . (New page: == Question One == Is the following signal periodic? == The Signal == :<math>x(t) = \sum_{k = -\infty}^\infty \frac{1}{(t+2k)^{2}+1}\,</math> == The Answer == '''Yes''' :<math>x(t+...)

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