Biểu diễn tích phân \(\int_0^{ + \infty } {\frac{{{x^2}}}{{{{(1 + {x^4})}^4}}}} dx\) theo hàm Gamma:

\(\frac{{\Gamma \left( {\frac{3}{4}} \right)\Gamma \left( {\frac{{13}}{4}} \right)}}{{6\Gamma (4)}}\)

\(\frac{{\Gamma \left( {\frac{3}{4}} \right)\Gamma \left( {\frac{1}{4}} \right)}}{{4\Gamma (4)}}\)

\(\frac{{\Gamma \left( {\frac{3}{4}} \right)\Gamma \left( {\frac{{13}}{4}} \right)}}{{4\Gamma (4)}}\)

\(\frac{{\Gamma \left( {\frac{3}{4}} \right)\Gamma \left( {\frac{5}{4}} \right)}}{{4\Gamma (4)}}\)