First Order DE Problem: Self-Teaching Derivatives

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SUMMARY

The discussion focuses on self-teaching first-order derivatives, specifically the equation \(\frac{dy}{dx} = \frac{y(1-x^5y)}{x}\). The user presents a series of transformations and simplifications, ultimately deriving \(\frac{x}{y} = \frac{-x^6}{6}\) and \(\frac{1}{y} = \frac{-x^7}{6}\). Feedback from participants emphasizes the need for verification by substituting back into the original equation and suggests including an integration constant for completeness.

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  • Understanding of first-order differential equations
  • Familiarity with basic calculus concepts, including derivatives and integrals
  • Knowledge of algebraic manipulation techniques
  • Experience with substitution methods in differential equations
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  • Study methods for solving first-order differential equations, focusing on separation of variables
  • Learn about integrating factors and their application in differential equations
  • Explore the concept of integration constants and their significance in solutions
  • Practice verifying solutions by substituting back into original equations
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Students and self-learners in mathematics, particularly those studying calculus and differential equations, as well as educators looking for examples of first-order derivative problems.

snowJT
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I've been kind of self teaching myself first order derivities...

this is really my first shot at it.. want to know if this is right so far

[tex]\frac{dy}{dx} = \frac{y(1-x^5y)}{x}[/tex]

[tex]xdx = y (1-x^5y)dx[/tex]

[tex]xdy = (1y-x^5y^2)dx[/tex]

[tex]xdy = ydx - x^5y^2dx[/tex]

[tex]\frac {xdy - ydx}{y^2} = \wr -x^5dx[/tex]

[tex]\wr d\frac{x}{y} = \wr -x^5dx[/tex]

[tex]\frac{x}{y} = \frac{-x^6}{6}[/tex]

[tex]\frac{1}{y} = \frac{-x^7}{6}[/tex]

does this look right so far? and how can I simplify it more?
 
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you can check by substituting your answer back into the original eq'n
 
snowJT said:
[tex]\frac{x}{y} = \frac{-x^6}{6}[/tex]

[tex]\frac{1}{y} = \frac{-x^7}{6}[/tex]

does this look right so far? and how can I simplify it more?

Check this part again. And put in some integration constant.

Daniel.
 

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