Laplace Transform Homework: Proving Informally

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SUMMARY

The forum discussion centers on the informal proof of the Laplace Transform of the function f(x) defined as the integral from 0 to infinity of (cos(xt)/(t^2+1)) dt, which equals (π/2) * Exp[-x]. Participants seek clarification on the interpretation of the cosine term, specifically whether it is cos(x)t or cos(xt). The discussion emphasizes the importance of understanding the correct formulation of the function to proceed with the proof.

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  • Understanding of Laplace Transforms
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  • Knowledge of complex analysis concepts
  • Basic understanding of exponential functions
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  • Learn about the relationship between cosine functions and Laplace Transforms
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Students studying advanced calculus, particularly those focusing on Laplace Transforms, as well as educators seeking to clarify concepts related to integral transforms and their applications in engineering and physics.

jakncoke
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Homework Statement



supposed to prove informally that

f(x)=Integral 0-->infinity (cosxt/(t^2+1))dt == Pi/2*Exp[-x]


Homework Equations





The Attempt at a Solution


no clue, need some hints to get started
 
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Is that (cos x) t or cos(xt)?
 

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