Evaluating a Reversed Order Double Integral

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Homework Help Overview

The problem involves evaluating a double integral by reversing the order of integration. The integral presented is \(\int^{2}_{0}\int^{1}_{y/2} ye^{x^3}dxdy\), which falls under the subject area of calculus, specifically dealing with double integrals and integration techniques.

Discussion Character

  • Exploratory, Mathematical reasoning

Approaches and Questions Raised

  • The original poster attempts to reverse the order of integration and presents their result as \(\int^{1}_{0}\int^{2x}_{0} ye^{x^3}dydx\). They express uncertainty about how to proceed with the integration of the resulting expression. Some participants suggest considering a substitution to facilitate the integration process.

Discussion Status

The discussion is ongoing, with participants exploring the implications of the substitution method. While some guidance has been offered regarding potential substitutions, there is no explicit consensus on the next steps or a resolution to the problem.

Contextual Notes

The original poster expresses concern about their pace in understanding the substitution method, indicating a potential barrier to progressing in the problem-solving process.

unreal89
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Homework Statement



Eveluate by reversing order of integration

\int^{2}_{0}\int^{1}_{y/2} ye^{x^3}dxdy

Homework Equations




The Attempt at a Solution



this is what I got...

\int^{1}_{0}\int^{2x}_{0} ye^{x^3}dydx

I end up with...

\int^{1}_{0} 2x^2e^{x^3}dx

I don't know how to integrate this... any tips? thanks
 
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almost there - try a substitution
 
I'm sorry for being so slow... But I'm not sure what to substitute? Thanks
 
unreal89 said:
I'm sorry for being so slow... But I'm not sure what to substitute? Thanks

Well, you probably know how to integrate e^u du, so maybe try the substitution u=x^3 and see what happens.:wink:
 

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