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CalculusChallengeNon-Elementary Integration

Non-Elementary Integration · Challenge problem

Using B(a,b)=Γ(a)Γ(b)Γ(a+b)B(a,b)=\dfrac{\Gamma(a)\Gamma(b)}{\Gamma(a+b)} and the reflection formula Γ(s)Γ(1−s)=πsin⁡πs\Gamma(s)\Gamma(1-s)=\dfrac{\pi}{\sin\pi s}, evaluate ∫0∞dx1+x3\displaystyle\int_0^{\infty}\dfrac{dx}{1+x^3}. Give the answer with a rationalized denominator.