Solve the integral 1/(1+x^3) dx

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SUMMARY

The integral of 1/(1+x^3) dx can be expressed as (1/3) ln(x+1) - (1/6) ln(x^2 - x + 1) + (1/2) ∫ (1/(x^2 - x + 1)) dx. The integral 1/(x^2 - x + 1) can be simplified using the substitution method, rewriting it as 4/3 * 1/((2x-1)/√3)^2 + 1. This transformation allows for easier integration using arctangent functions.

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Alexx1
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I try to solve the integral 1/(1+x^3) dx , but I got stuck

Now I got as solution:

(1/3) ln(x+1) - (1/6) ln(x^2 -x+1) + (1/2) integral (1/(x^2 -x+1))

Can someone help me to solve the last integral? I have absolutely no idea how I can solve that one..

So integral: 1/(x^2 -x+1) dx
 
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Write:
\frac{1}{x^{2}-x+1}=\frac{1}{(x-\frac{1}{2})^{2}+\frac{3}{4}}=\frac{4}{3}\frac{1}{(\frac{2x-1}{\sqrt{3}})^{2}+1}
 


arildno said:
Write:
\frac{1}{x^{2}-x+1}=\frac{1}{(x-\frac{1}{2})^{2}+\frac{3}{4}}=\frac{4}{3}\frac{1}{(\frac{2x-1}{\sqrt{3}})^{2}+1}

Thank you very much!
 

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