Laplace Transform of t^2(e^2t)sin(3t)

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SUMMARY

The Laplace Transform of the function f(t) = t^2(e^2t)sin(3t) requires the application of the shift property and the transform of t^2sin(3t). The correct approach involves first calculating L{t^2sin(3t)} and then applying the shift property to obtain L{e^(2t)t^2sin(3t)}. The transformation of (e^2t)sin(3t) yields the expression 3/(s-2)^2 + 9, but the complete solution must incorporate the t^2 term appropriately to match the expected answer.

PREREQUISITES
  • Understanding of Laplace Transforms, specifically L{t^n f(t)}
  • Familiarity with the shift theorem in Laplace Transforms
  • Knowledge of trigonometric functions and their properties
  • Basic calculus concepts, including differentiation and integration
NEXT STEPS
  • Study the application of the shift property in Laplace Transforms
  • Learn how to compute L{t^n f(t)} for various functions
  • Explore practical examples of Laplace Transforms in engineering problems
  • Review the relationship between differentiation and integration with real-world applications
USEFUL FOR

Students studying differential equations, engineers applying Laplace Transforms in system analysis, and anyone seeking to understand the practical applications of transforms in solving complex functions.

Karmel
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Homework Statement


f(t) = t^2(e^2t)sin(3t)


Homework Equations





The Attempt at a Solution


I think that I am just not breaking this down right. If I transform (e^2t)sin(3t) I used b/(s-a)^2 + b^2 which came out to = 3/(s-2)^2 +9 and transform the t^2 and get t^2/s...Since I have the correct answer in front fo me I already know that this wrong and I am not seeing how the teacher got to that answer since he didn't show the steps...
 
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Apply L{t2sin3t} first. Then apply the shift property to obtain L{e2tt2sin3t}
 
Hi,

I want to know the difference between differentiation and Integration with practical example? How can a differential equation x^3+x^2+x=32 can be explained in practical sense?
can anybody help me out?
 
AypaPhysics said:
Hi,

I want to know the difference between differentiation and Integration with practical example? How can a differential equation x^3+x^2+x=32 can be explained in practical sense?
can anybody help me out?

start a new thread, don't hijack someone else's
 

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