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electronics and communication engineering signals and systems
1. The function (sin x)/x
(A): has a period 2p , decays with increasing x and has zeros at np , n = ± 1, ± 2
(B): has a period 2p , decays with increasing x, is an even function and has zeros at np , n = ± 1, ± 2
(C): has a period p
(D): has a period p /2
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