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In: Electrical Engineering

.         Given the following non-periodic signal:    x(t) = 3 e-5t cos(12t) u(t)             Find the Fourier...

.         Given the following non-periodic signal:   

x(t) = 3 e-5t cos(12t) u(t)

            Find the Fourier transform expression X(ω) without using Table.

            Calculate the magnitude spectrum of X(ω) for ω = π/8, π/4, and π/2

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