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electronics and communication engineering exam question papers
1. The magnitude plot of a composite signal x(t) = e3jt + e4jt is __________ .
(A): Exponentially decreasing sinusoid
(B): Exponentially increasing sinusoid
(C): Full wave rectified sinusoid
(D): Half wave rectified sinusoid
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By: guest on 02 Jun 2017 12.55 am
x(t) = ej3.5t(e-j05t + ej0.5t) x(t) = 2ej3.5t cos(0.5)t The magnitude of x(t) is |x(t)| = 2|cos(0.5)t|.
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