How to Find an Integrating Factor for an Inexact Differential Equation?

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SUMMARY

The discussion focuses on finding an integrating factor for the inexact differential equation represented by the system x' = xg(y) and y' = yh(x). The equation can be rewritten as -yh(x)dx + xg(y)dy = 0, confirming its inexact nature. The original poster successfully discovered the solution independently, indicating that the process of finding the integrating factor is achievable with the right approach.

PREREQUISITES
  • Understanding of differential equations, specifically inexact differential equations.
  • Familiarity with the concept of integrating factors in the context of differential equations.
  • Knowledge of functions and their derivatives, particularly in relation to x and y variables.
  • Basic skills in solving first-order ordinary differential equations (ODEs).
NEXT STEPS
  • Research methods for identifying integrating factors for inexact differential equations.
  • Study the application of exact equations and how they relate to integrating factors.
  • Explore advanced techniques in solving first-order ODEs, including substitution methods.
  • Learn about the role of functions g(y) and h(x) in the context of differential equations.
USEFUL FOR

Mathematicians, students studying differential equations, and anyone interested in advanced calculus techniques for solving inexact differential equations.

heinerL
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Hello

I'm trying to solve the following DGL with an integrating factor:

[tex]x'=xg(y)[/tex]
[tex]y'=yh(x)[/tex]

which is equivalent to [tex]-yh(x)dx+xg(x)dy=0[/tex] which is an inexact dg?

How to i find an integrating factor in this case?

thx
 
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already found the solution on my own!
 

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