Find the Laplace transforms of the following waveforms: (a) f t =Acos tut (b) f t =Aetcos

Question:

Find the Laplace transforms of the following waveforms:

(a) f ðtÞ =A½cos ðβt−ϕÞuðtÞ

(b) f ðtÞ =A½e−αtcos ðβt−ϕÞuðtÞ

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Ali Khawaja

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