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Q1: The magnitude plot of a composite signal x(t) = e3jt + e4jt is __________ .

A Half wave rectified sinusoid

B Full wave rectified sinusoid

C Exponentially increasing sinusoid

D Exponentially decreasing sinusoid

ANS:B - Full wave rectified sinusoid

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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