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

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Homework Help Overview

The problem involves finding the Laplace transform of the function f(t) = t^2(e^2t)sin(3t), which combines polynomial, exponential, and trigonometric components.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to apply the Laplace transform to the components of the function but expresses uncertainty about their approach and the steps taken by the teacher. Another participant suggests applying the Laplace transform of t^2sin(3t) first and then using the shift property for the exponential term.

Discussion Status

The discussion is ongoing, with participants exploring different methods for applying the Laplace transform. Some guidance has been offered regarding the order of operations in the transformation process, but there is no explicit consensus on the correct approach yet.

Contextual Notes

The original poster indicates that they have a correct answer but are unsure how to arrive at it, suggesting a potential gap in understanding the transformation process. There are also unrelated posts that may distract from the main topic.

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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