Struggling to Evaluate This Double Integral?

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SUMMARY

The discussion focuses on evaluating the double integral of the function e^(y^3) over the specified limits, with dy evaluated from sqrt(x/3) to 1 and dx from 0 to 3. Participants emphasize the importance of treating variables as constants during integration, noting that the order of integration may not affect the outcome in many cases. The integral of e^(y^3) is identified as a challenging aspect, with users expressing difficulty in finding an antiderivative for this function. Ultimately, the discussion highlights the complexities involved in evaluating double integrals, particularly when dealing with non-elementary functions.

PREREQUISITES
  • Understanding of double integrals in calculus
  • Familiarity with the concept of treating variables as constants during integration
  • Knowledge of the exponential function and its properties
  • Basic proficiency in LaTeX for mathematical notation
NEXT STEPS
  • Research techniques for evaluating non-elementary integrals, such as e^(y^3)
  • Learn about numerical integration methods for approximating difficult integrals
  • Explore the use of substitution methods in double integrals
  • Study the properties of exponential functions and their integrals
USEFUL FOR

Students and professionals in mathematics, particularly those studying calculus, as well as educators looking to enhance their understanding of double integrals and integration techniques.

ChargedTaco
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Evaluate.

double integral (e^(y^3)) dy dx

Where dy is evaluated from sqrt(x/3) to 1

...and dx is evaluated from 0 to 3.

I am lost.
I don't even know how to start.:frown:
 
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do u know how to do integrals?
double integral is just normal integrals in disguise, so when ou are doing the "y"-integral, you treat all "x"s in the integrand as just a constant, and while doing the "x"-integral you treat all "y"s as constant. Then, everything would then be exactly the same as a normal single integral. In many cases, whether you do the x or y integral first does not matter.
in your case i think you should do y first
 
The "y" integration doesn't look pretty. It's basically

\int_{a}^{b} e^{y^3}{}dy
 
Hey guys yes I do know how to do integrals...however I don't know how to do this one. If I integrate y first I have to integrate e^(y^3)dy...and i don't know how to do this.

If I integrate x first then I'll end up with having to
integrate 3e^(y^3)dy...and I again I don't know how to do this.

Thanks.
 
Here it is.

\int_{0}^{3} \int_{sqrt(x/3)}^{1} e^{y^3} {}dy} {}dx

Yay! I got the latex code...however this is the only thing I know about this problem.
 
Last edited:
Nevermind...I got it. Thanks guys.
 

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