Help with Homework: Solving a Math Formula

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Discussion Overview

The discussion revolves around a homework question related to solving a math formula involving integro-differential equations and their transformation to the Laplace domain. Participants explore the process of applying Laplace transforms to solve these equations and return to the time domain.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • One participant seeks clarification on how to approach a specific formula related to integro-differential equations.
  • Another participant suggests transforming the equations to the Laplace domain, noting that this allows for algebraic solutions.
  • Several properties of Laplace transforms are provided, including the transforms of functions and their derivatives.
  • A participant expresses gratitude for the provided formula, indicating it was helpful.
  • A reminder is issued regarding forum rules, emphasizing that homework questions should include an attempt at a solution.
  • It is suggested that access to a table of Laplace transforms would be beneficial for solving the problems presented.

Areas of Agreement / Disagreement

Participants generally agree on the approach of using Laplace transforms for solving the equations, but there is no consensus on the specific steps the original poster should take, as they have not yet provided an attempt at the problem.

Contextual Notes

Limitations include the original poster's lack of an initial attempt at the problem, which is required by forum rules. The discussion does not resolve the specific challenges faced by the original poster in applying the Laplace transform.

Lucky Pradana
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Homework Statement
Find i(t) and y(t) in this laplace of circuit formula
Relevant Equations
Laplace transform to find i(t) and y(t)
i want to ask about my homework
im not understand what to do with this formula :
 

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Transform the integro-differential equations to the Laplace domain using known properties.
In the Laplace domain the equations can be solves algebraically.
Transform the solution back to the time domain.
useful properties
$$L\{ \mathrm{f} (t) \}= \mathrm{F}(s)$$
$$L\{ \mathrm{f}^\prime (t) \}=s \, \mathrm{F}(s)-\mathrm{f} (0^+)$$
$$L\left\{ \int_{0^+}^t \mathrm{f} (u) du \right\}=\frac{1}{s} \, \mathrm{F}(s)$$
 
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Likes   Reactions: berkeman and Lucky Pradana
thanks for the formula,helped a lot !
 
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Likes   Reactions: berkeman
Per the forum rules that you agreed to when you signed up, homework questions must be accompanied by an attempt. Be sure to include an attempt in any future homework questions you might have.

Also, if you're working on problems where you need to convert differential equations or integro-differential equations (like #1 in the two you posted), you should have access to a table of Laplace transforms. If you do a web search for "Laplace transform table" you should get lots of hits.
 

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