Solve for the Antiderivative of e^5x^2 using Integration Tables"

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SUMMARY

The discussion focuses on finding the antiderivative of the function e^(5x^2) using integration techniques. It is established that e^(5x^2) does not possess an elementary antiderivative and can instead be expressed in terms of the error function, Erf(x). Additionally, integration tables are referenced for solving integrals such as ∫(36t^8)/(1+sin(t^9))dt, with specific formulas provided for guidance. The participants emphasize the importance of substitution methods in tackling these integrals.

PREREQUISITES
  • Understanding of integration techniques, specifically integration by substitution.
  • Familiarity with integration tables and their application in solving complex integrals.
  • Knowledge of the error function, Erf(x), and its significance in calculus.
  • Basic proficiency in handling trigonometric integrals, particularly involving sine functions.
NEXT STEPS
  • Study the properties and applications of the error function, Erf(x).
  • Explore advanced integration techniques, including integration by parts and trigonometric substitutions.
  • Learn how to effectively use integration tables for various types of integrals.
  • Investigate the derivation and applications of specific integral formulas, such as ∫(u^2)/(a+bu)du.
USEFUL FOR

Students and educators in calculus, mathematicians dealing with advanced integration problems, and anyone seeking to deepen their understanding of antiderivatives and special functions in mathematical analysis.

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Homework Statement



use integration tables to find:

\int\frac{\(36t^8}{1+sin(t^9)}dt


Homework Equations



the closest ones i could find:

\int\frac{\(u^2}{a+bu}du = \frac{\(1}{b^3}[\frac{\-bu}{2}(2a-bu) + (a^2)ln|a+bu|]

and

\int\frac{\(1}{1+sinu}du = tanu - secu + C

The Attempt at a Solution



i just don't know where to even begin.


Homework Statement



just another quick question:

what is the antiderivative of e^5x^2 ?

looks like this:

efivexsquared.jpg
 
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I'm not exactly sure if it is entirely "using integration tables" but if you make the substitution u= x9 so that du= 9 x8dx you get a form where you can use the second of your integrals.

e^{5x^2} does not have an "elementary" anti-derivative. It can be written in terms of the "error function"
Erf(x).
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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