Get Help with a Reducible DFQ | Beginner's Guide | Online Support

  • Thread starter Thread starter lat77
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around a differential equation presented in the context of seeking help with a reducible differential equation (DFQ). Participants explore the separability of the equation and the necessity of substitution in solving it.

Discussion Character

  • Homework-related, Technical explanation

Main Points Raised

  • One participant presents the equation ydx = - (1 + e^x)dy and questions whether it is separable or if a substitution is required.
  • Another participant acknowledges an error in their previous message, indicating that a missing 'y' in the equation necessitated the use of substitution.
  • A separate participant references a previous thread, questioning if the current problem is related to it.

Areas of Agreement / Disagreement

The discussion does not reach a consensus on the method of solving the differential equation, as participants express uncertainty regarding separability and substitution requirements.

Contextual Notes

There are limitations due to missing assumptions about the equation's structure and the implications of the referenced thread.

lat77
Messages
6
Reaction score
0
Wrong section, sorry! First time user.
 
Last edited:
Physics news on Phys.org
ydx = - (1 + e^x)dy then \frac{dx}{-(1 + e^x)} = \frac{dy}{y}

This is separable, right? Or you are required to use a substitution?
 
Sorry, I left out a y in the parenthesis. Reread the problem now... that's why substitution was required.
 
Last edited:

Similar threads

MATLAB Using 2 MATLAB files to simulate 3 plots
  • · Replies 1 ·
Replies
1
Views
2K
Intro Physics A New Free Ukrainian Language Undergraduate Physics Study Guide
  • · Replies 0 ·
Replies
0
Views
1K
How can I get peer-reviewed studies supporting my assertions?
  • · Replies 15 ·
Replies
15
Views
1K
Finding support to complete a UK charity registration application
  • · Replies 4 ·
Replies
4
Views
1K
Looking for Online Calculus-based Physics Courses with Lab Component
  • · Replies 2 ·
Replies
2
Views
4K
Graduate MTW Gravitation: Exercise 5.1 | Beginner GR Stress-Energy Tensor Symmetry
  • · Replies 15 ·
Replies
15
Views
3K
Help with leaf electroscope for school use please!
  • · Replies 4 ·
Replies
4
Views
1K
What is the bare minimum necessary to "get" quantum mechanics?
  • · Replies 27 ·
Replies
27
Views
3K
Astrophysics Unlock the Math behind Astronomy: A Student's Guide by Fleisch & Kregnow
  • · Replies 1 ·
Replies
1
Views
2K
Python Partial pivoting in getting the reduced row echelon form of a matrix
  • · Replies 2 ·
Replies
2
Views
2K