Solving Differential Equations with Substitution Method

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SUMMARY

The discussion focuses on solving the differential equation xy' + y = e^(xy) using the substitution method where u ≡ xy. Participants seek clarification on the correct setup for the substitution and the implications of the equation format. The moderator emphasizes the importance of posting homework-related queries in the appropriate forum section, indicating that this topic falls under calculus and differential equations.

PREREQUISITES
  • Understanding of differential equations, specifically first-order linear equations.
  • Familiarity with substitution methods in calculus.
  • Knowledge of exponential functions and their properties.
  • Basic skills in manipulating algebraic expressions and equations.
NEXT STEPS
  • Study the method of substitution in solving differential equations.
  • Learn about first-order linear differential equations and their solutions.
  • Explore the implications of using exponential functions in differential equations.
  • Practice solving similar differential equations using various substitution techniques.
USEFUL FOR

Students studying calculus, particularly those focusing on differential equations, as well as educators and tutors seeking to enhance their understanding of substitution methods in solving such equations.

der.physika
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I'm having trouble setting up this solution can anyone give me a hint, or set it up, so I can see if what I'm doing is right?

xy\prime=y=e^x^y

using the substitution

u\equiv(xy)
 
Last edited:
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xy\prime=y=e^x^y

What do you mean with two = in "equation"?
 
Moderator's note:

Thread moved to "Calculus and Beyond" in the https://www.physicsforums.com/forumdisplay.php?f=152" area.

Homework assignments or any textbook style exercises for which one is seeking assistance are to be posted in the appropriate forum in our Homework & Coursework Questions area. This should be done whether the problem is part of one's assigned coursework or just independent study.
 
Last edited by a moderator:
Sorry about that, I wrote that wrong the actual problem is

xy\prime+y=e^x^y

using the substitution

u\equiv(xy)
 
Last edited:

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