How to convert this ODE to a standard form

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SUMMARY

The discussion focuses on converting the second-order ordinary differential equation (ODE) given by t²y'' + sin(y') + 2y − 1 = 0 into a standard first-order ODE system. The solution involves introducing a new variable x(t) = y'(t), which transforms the equation into (t²)x' + sin(x) + 2y - 1 = 0. This allows for the formulation of a system of equations represented as [y', x'] = [f(t,x,y), g(t,x,y)], facilitating further analysis and solution.

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  • Understanding of ordinary differential equations (ODEs)
  • Familiarity with first-order and second-order derivatives
  • Knowledge of variable substitution techniques in differential equations
  • Basic grasp of systems of equations in the context of ODEs
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Students and professionals in mathematics, particularly those studying differential equations, as well as educators looking for effective methods to teach ODE transformations.

oxxiissiixxo
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Homework Statement



Convert to standard form ODE system y0 = f(t, y):
t^2y'' + sin(y') + 2y − 1 = 0

the goal is to reduce the equation above to be a first order ode.

Homework Equations


The Attempt at a Solution



I tried to introduced a new variable but the sin(y') seems tricky.
 
Last edited:
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What is y0? Also, what is y differentiated with respect to.
 
oxxiissiixxo said:

Homework Statement



Convert to standard form ODE system[/color] y0 = f(t, y):
t^2y'' + sin(y') + 2y − 1 = 0

the goal is to reduce the equation above to be a first order ode. Above you said "system".[/color]

The Attempt at a Solution


I tried to introduced a new variable but the sin(y') seems tricky.
I'll assume the derivatives are with respect to t. If we let x(t) = y'(t), then the equation becomes (t^2)x' + sin(x) + 2y - 1 =0, which can be solved for x' in terms of t, x, y. In this way we obtain a system of the form [y', x'] = [f(t,x,y), g(t,x,y)].
 
Last edited:

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