How to evaluate the integral $\int_0^{+\infty} \frac{\sin^4{x}}{x^4}dx$?
15324
A sine integral $\int_0^{\infty} \left(\frac{\sin x }{x }\right)^n\,\mathrm{d}x$
108554
Integrating $\int_0^\infty\frac{1}{1+x^6}dx$
158147
Calculating $\int_{-\infty}^{\infty}\frac{\sin(ax)}{x}\, dx$ using complex analysis
67629
How to evaluate these indefinite integrals with $\sqrt{1+x^4}$?
146338
How to evaluate $\int\frac{1+x^4}{(1-x^4)^{3/2}}dx$?
63650
Evaluating the contour integral $\int_{0}^{\infty}\frac{\sin^{3}(x)}{x^{3}}\mathrm dx$
50735
The integral $\int_0^8 \sqrt{x^4+4x^2}\,dx$
123694
How to compute the integral $\int_{0}^{\infty} \frac{x^{1/3}}{1+x^{2}} \ dx$
79633
Calculating the integral $\int_{-\infty}^{\infty} x\sin(x)/(x^2+1)^2 dx$
81831
Evaluate $\int_0^{\infty}\frac{\log x}{1+e^x}\,dx$
38511
Evaluation of $\int\frac{1}{x^2.(x^4+1)^{\frac{3}{4}}}dx$
44737
$ \int_{-\infty}^{\infty} x^4 e^{-ax^2} dx$
53519
Finding $\int_0^1{\frac{x^4(1-x)^4}{1+x^2}}dx$
71982
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
77834
Is it possible to compute $\int_{-\infty}^\infty {x \sin x\over x^4+1}dx$ without using complex analysis?
137549
Given $\int_0^{\infty}e^{-x^2}dx = \frac{\sqrt{\pi}}{2}$, evaluate $\int_0^{\infty}e^{-a^2x^2-\frac{b^2}{x^2}}dx $
65982
Evaluate the improper integral $ \int_0^1 \frac{\ln(1+x)}{x}\,dx $