Abel's Equation and Wronskian for find out y2

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SUMMARY

The discussion focuses on solving the second-order linear differential equation given by x²y'' + xy' + (x² - 0.25)y = 0, using Abel's equation and the Wronskian method. The participant has identified y1 = x^(-1/2)sin(x) as a known solution but struggles with the resulting first-order ordinary differential equation (ODE) derived from the Wronskian. The recommended approach is to apply the method of reduction of order, as outlined in Exercise 37 of Boyce and DiPrima's textbook, to find the second solution y2.

PREREQUISITES
  • Understanding of second-order linear differential equations
  • Familiarity with Abel's equation and Wronskian
  • Knowledge of reduction of order technique
  • Basic trigonometric functions and their derivatives
NEXT STEPS
  • Study the method of reduction of order in detail
  • Review the Wronskian and its applications in differential equations
  • Practice solving second-order linear ODEs using various techniques
  • Explore the content of Boyce and DiPrima's textbook, specifically the chapter on second-order linear equations
USEFUL FOR

Students and educators in mathematics, particularly those studying differential equations, as well as anyone seeking to deepen their understanding of Abel's equation and the Wronskian method.

maiacaroline
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Homework Statement


x²y''+xy'+(x²-0,25)y=0
y1= x^-1/2*sin x

Homework Equations


Abel's equation:
W= c.e^-(integrate (p(t))

The Attempt at a Solution



My Wronskian gave me a first order ODE that I really don't know solve.

x^-1/2*sinx y' + (1/2 x^-3/2 sin x- x^-1/2cosx) y2

I don't solved the Abel's equation cause I don't know what to do with this amount of sin and cos ahahhahaha.

Is the exercise 37 of Boyce and Diprima
 
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Since you are given one solution you should use the method of reduction of order to find the other one, and it should be in the chapter where you found the question (did it myself a few months ago).
 

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