Another Separable Differential Equation

In summary, the conversation discusses solving an equation by separating variables. The attempt at a solution involves using polynomial division and u-substitution to simplify the integral.
  • #1
crm07149
6
0

Homework Statement


Solve the following equation by separating variables.

Homework Equations


x2y2y' +1 = y

The Attempt at a Solution


I have been able to work through the problem to this point:

-1/x + C = int(y2/y-1)dy

I am not sure how to integrate the right hand expression int(y2/y-1)dy
 
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  • #2
Polynomial division of y2/(y-1) looks like it will work.
 
Last edited:
  • #3
Have you tried u-substitution with u=y-1?
 
  • #4
What do you mean by polynomial division?

u-substitution with u = y-1 brings it to int(y^2/u)du, with both y and u variables
 
  • #5

What is a separable differential equation?

A separable differential equation is a type of differential equation where the dependent variable and independent variable can be separated on opposite sides of the equation. This allows for the equation to be solved by integrating both sides separately.

How do you solve a separable differential equation?

To solve a separable differential equation, you need to first separate the variables on opposite sides of the equation. Then, integrate both sides separately and solve for the dependent variable. Finally, check your solution by plugging it back into the original equation.

What is the importance of separable differential equations?

Separable differential equations are important in many scientific fields, including physics, engineering, and economics. They allow for the modeling and prediction of various phenomena, such as population growth, radioactive decay, and fluid flow. They also have practical applications in solving real-world problems and optimizing systems.

What are some common techniques used to solve separable differential equations?

Some common techniques used to solve separable differential equations include separation of variables, substitution, and partial fractions. These techniques can be combined and applied to different types of separable differential equations, depending on their specific form.

Are there any limitations to using separable differential equations?

While separable differential equations are powerful tools for solving many problems, they do have limitations. They can only be used for equations that can be separated into two distinct parts. Additionally, not all separable differential equations have closed-form solutions, which means they cannot be solved exactly and may require numerical methods.

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