Integration of Rational Functions by Partial Fractions

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SUMMARY

The integration of the function ∫1/(x^3-1) dx involves the use of partial fraction decomposition. The correct factorization of the denominator x^3-1 is (x-1)(x^2+x+1). After confirming the factorization, the integration can be approached by expressing the integrand as a sum of simpler fractions. This method allows for easier integration using standard techniques.

PREREQUISITES
  • Understanding of partial fraction decomposition
  • Familiarity with polynomial factorization
  • Knowledge of basic integration techniques
  • Experience with rational functions
NEXT STEPS
  • Study the method of partial fraction decomposition in detail
  • Practice polynomial factorization techniques
  • Review integration of rational functions using standard forms
  • Explore advanced integration techniques such as trigonometric substitution
USEFUL FOR

Students studying calculus, particularly those focusing on integration techniques, as well as educators looking for examples of rational function integration.

afcwestwarrior
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Homework Statement



∫1/ x^3-1 dx, ok how would i do this

Homework Equations


∫dx/ x^2+a^2= 1/a tan^-1 (x/a) +c


i tried to simplify x^3-1 = (x+1)(x-1)(x+1)
 
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afcwestwarrior said:
i tried to simplify x^3-1 = (x+1)(x-1)(x+1)

You've tried to factor out (x-1) from x3-1 which is a good start, however you might want to check your calculation again. Once you've re-done the factorization, we'll take it from there.
 
Last edited by a moderator:
afcwestwarrior said:
i tried to simplify x^3-1 = (x+1)(x-1)(x+1)

Check this back...(x-1) is a factor, but divide it out again, your approach is correct though.
 

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