Help Solving DE with Squared Term

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SUMMARY

The discussion focuses on solving the differential equation y'' + t(y')² = 0. The key insight provided is to substitute y' with v, transforming the equation into v' + tv² = 0, which is a separable equation. This substitution simplifies the problem, allowing for straightforward integration to find the solution. The participants confirm the effectiveness of this method in solving the original differential equation.

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  • Knowledge of separable equations and integration techniques.
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Students studying differential equations, mathematics enthusiasts, and educators looking for effective methods to teach solving second-order differential equations.

2RIP
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Hey guys,

Homework Statement


Solve the following DE,

y"+t(y')^2=0I'm not sure what to do with the square there. Would it help if i divided the whole equation by y'?

Thanks
 
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2RIP said:
y"+t(y')^2=0

Hey 2RIP! :smile:

HInt: put y' = v …

then it's v' + tv2 = 0. :wink:
 
tiny-tim said:
Hey 2RIP! :smile:

HInt: put y' = v …

then it's v' + tv2 = 0. :wink:

Oh thanks tiny-tim, it becomes a separable equation :P
 

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