Solving Differential Equations: Integrating (y+1)^2/y dy = x^2 ln x dx

So, in summary, the final solution is ##\frac{1}{2} y^2 + 2y + \ln y = \ln x \ . \frac{1}{3}x^3 - \frac{1}{9} x^3 + c##.
  • #1
basty
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Thread was originally posted in a technical section, so does not include the template
I have differential equations problem, the problem is:

##\frac{(y+1)^2}{y} dy = x^2 \ln x \ dx##

Integrating both sides will yield:

##\frac{1}{2} y^2 + 2y + \ln y = \ln x \ . \frac{1}{3}x^3 - \frac{1}{9} x^3 + c##

Is this the final solution?

If not, what is the final solution?
 
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  • #2
basty said:
I have differential equations problem, the problem is:

##\frac{(y+1)^2}{y} dy = x^2 \ln x \ dx##

Integrating both sides will yield:

##\frac{1}{2} y^2 + 2y + \ln y = \ln x \ . \frac{1}{3}x^3 - \frac{1}{9} x^3 + c##

Is this the final solution?

If not, what is the final solution?
Assuming your work is correct (I didn't check), what you got looks fine. You can check for yourself by differentiating both sides with respect to x. If what you ended with is correct, you should be able to get back to the equation at the beginning of your post.
 

1. What is the purpose of solving differential equations?

The purpose of solving differential equations is to find a mathematical function that describes the relationship between a dependent variable and one or more independent variables, and to use this function to make predictions about the behavior of the system.

2. How do you integrate a differential equation?

To integrate a differential equation, you need to find an antiderivative of the equation. This can be done using various integration techniques such as substitution, integration by parts, or partial fractions.

3. What is the general solution of a differential equation?

The general solution of a differential equation is the set of all possible solutions that satisfy the equation. It typically includes a constant of integration, as there are often infinite solutions to a differential equation.

4. What is the specific solution of a differential equation?

The specific solution of a differential equation is a particular solution that satisfies the equation and any given initial conditions. It is unique and can be found by substituting the initial conditions into the general solution.

5. How do you solve the specific differential equation (y+1)^2/y dy = x^2 ln x dx?

To solve the specific differential equation (y+1)^2/y dy = x^2 ln x dx, you can use the method of separation of variables. This involves separating the variables on either side of the equation and integrating both sides to find the general solution. Then, you can use the given initial conditions to find the specific solution.

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