Improper integral of $\sqrt{x^4 + 1} - x^2$
68821
Prove $\int_0^{\infty} \left(\sqrt{1+x^{4}}-x^{2}\right)\ dx=\frac{\Gamma^{2}\left(\frac{1}{4}\right)}{6\sqrt{\pi}}$
84884
Need help with the integral $\int_{0}^\infty e^{-x^{2}}x^{2n+1}dx $
67317
Definite Integral of square root of polynomial
24056
Convergence of the improper integral $\int_{0}^{\pi/2}\tan^{p}(x) \; dx$
148613
Integrate $\int_{0}^{1}{x^{-x}(1-x)^{x-1}\sin{\pi x}dx}$
152977
Integrate $\int\sqrt{x+\sqrt{x^{2}+2}} dx$ .
38511
Evaluation of $\int\frac{1}{x^2.(x^4+1)^{\frac{3}{4}}}dx$
84311
Elliptic integral $\int^1_0 \frac{K(k)}{\sqrt{1-k^2}}\,dk$
140638
Integrating $\int_0^{\infty} \frac{dx}{1+x^3}$ using residues.
121736
An improper integral : $\int_{0}^\infty {\ln(a^2+x^2)\over{b^2+x^2}}dx$
45212
Integrals involving reciprocal square root of a quartic
31529
Integrating $\int^2_{-2}\frac{x^2}{1+5^x}$
38515
Integral of $\frac{1}{x^4+1}$
44737
$ \int_{-\infty}^{\infty} x^4 e^{-ax^2} dx$
157931
Contour integration of $\int \frac{dx} {(1+x^2)^{n+1}}$
126046
solving the integral $ \int_0^\infty \dfrac{\sin xt}{x(x^2+1)} dx $
80736
How to integrate $\int\frac{\sqrt{1+x^2}}{x}\,\mathrm dx$