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electronics and communication engineering signals and systems
1. If x1(t) = 2 sin p t + cos 4 p t and x2(t) = sin 5 p t + 3 sin 13 p t then
(A): x1 is not periodic ; but x2 is periodic
(B): x1 periodic, x2 not periodic
(C): x1 x2 both not periodic
(D): x1, x2 both periodic
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By: guest on 02 Jun 2017 01.13 am
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