How to integrate $\int_0^{\infty} \frac{dx}{1+x^3}$
140638
Integrating $\int_0^{\infty} \frac{dx}{1+x^3}$ using residues.
91196
Complex Integration of $\int_0^\infty e^{-ax}\cos(bx)\,dx$
110922
What are different ways to compute $\int_{0}^{+\infty}\frac{\cos x}{a^2+x^2}dx$?
16775
Showing that $\int_{0}^{\infty} \frac{dx}{1 + x^2} = 2 \int_0^1 \frac{dx}{1 + x^2}$
132124
$\int_{0}^{\infty}\frac{x}{x^3+1}dx$ =?
124445
Integral of the form $\int_{0}^{\infty}e^{-ax}e^{-x^{4}}dx$
13978
Calculating the integral $\int_0^\infty \frac{\cos x}{1+x^2}\, \mathrm{d}x$ without using complex analysis
84884
Need help with the integral $\int_{0}^\infty e^{-x^{2}}x^{2n+1}dx $
6014
Evaluating $\int_{-\infty}^{\infty}\frac{\exp\left(-a x^2\right)}{x^2+b^2}dx$
35861
Evaluate $\int_0^\infty\frac{\ln x}{1+x^2}dx$
51971
How to evaluate the integral $\int e^{x^3}dx $
146349
$\int_0^\infty \frac{\ln\left(1+x-\sqrt{2x}\right)}{1+x^2}\,dx$
53518
Integrating : $\int_0^1 {\frac {x^a-x^b} {\ln x} dx}$
100485
How do I evaluate the integral $\int_0^{\infty}\frac{x^5\sin(x)}{(1+x^2)^3}dx$?
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$
15569
Integral of the form $\int_0^\infty \exp{\left(-\frac{(a+bx)^2}{x}\right)}\frac{dx}{\sqrt{x^3}}$
51284
$\int_{-\infty}^\infty \frac{e^{ax}}{1+e^x}dx$ with residue calculus