Mastering Integration by Parts for Complex Functions

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Homework Help Overview

The discussion revolves around the integral of the function e raised to the cube root of x, specifically the expression ∫ e^√[3]{x} dx. Participants are exploring methods for solving this integral, which falls under the subject area of integration techniques in calculus.

Discussion Character

  • Exploratory, Mathematical reasoning, Assumption checking

Approaches and Questions Raised

  • The original poster considers using integration by parts but is uncertain about the appropriate choices for u and dv. Some participants suggest that the integral may not be expressible in elementary functions, while others propose a substitution method involving u^3 = x.

Discussion Status

The discussion is active, with various approaches being explored. Some participants are questioning the feasibility of expressing the integral in simpler terms, while others are sharing their attempts at using substitution and integration by parts. There is no explicit consensus on the best method yet, but multiple interpretations are being considered.

Contextual Notes

Participants are navigating assumptions about the expressibility of the integral and the appropriateness of different integration techniques. There is a mention of potential confusion regarding the application of integration by parts.

kesun
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[tex]\int e^\sqrt[3]{x}[/tex] dx

Integration by parts, perhaps? But if that's the case, I have no idea which is right value for u and which is the right one for dv... Taking ln on both sides? Uh...hmm...I don't think that's how you work this question out...

Any ideas, guys? :|

Thanks!
 
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I'm quite certain that integral in not expressible in terms of elementary functions.
 
Yeah it can... Let u^3=x
 
Last edited:
Feldoh said:
Yeah it can... Let u^3=x

Ahh my bad then. Sorry.
 
Feldoh said:
Yeah it can... Let u^3=x

OH YES. First I did that, then I used integration by parts twice to eliminate the u^2 all the way to du, then ta-daa!

Thanks!
 

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