Evaluating the integral $\int_0^\infty\frac{x^3}{e^{ax}-1}dx$
100194
Calculating $ \int _{0} ^{\infty} \frac{x^{3}}{e^{x}-1}\;dx$
63650
Evaluating the contour integral $\int_{0}^{\infty}\frac{\sin^{3}(x)}{x^{3}}\mathrm dx$
84884
Need help with the integral $\int_{0}^\infty e^{-x^{2}}x^{2n+1}dx $
9730
Solve the integral $\int_0^\infty x/(x^3+1) dx$
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
109901
Computing $\int_0^\infty\frac1{(x+1)(x+2)\cdots(x+n)}\mathrm dx $
140638
Integrating $\int_0^{\infty} \frac{dx}{1+x^3}$ using residues.
7042
Defined integral of $x^{\alpha} (1-x)^{\beta-1}$
154185
Evaluate $\iiint_{[0,1]^3}\frac{dx\,dy\,dz}{(1+x^2+y^2+z^2)^2}$
51284
$\int_{-\infty}^\infty \frac{e^{ax}}{1+e^x}dx$ with residue calculus
15625
Computing $\int_0^\infty\mathrm{d} x\frac{x}{e^x+1}$ with contour integration
130935
Evaluating $\int_{0}^{1}\frac{x-1}{(x+1)\ln x} dx $
21375
The integral $\int_0^\infty \dfrac{x \sin(x)}{x^2+1} dx$
51488
Evaluating $\int^\pi_{-\pi} \cos^3(x) \cos(ax)~dx$
15569
Integral of the form $\int_0^\infty \exp{\left(-\frac{(a+bx)^2}{x}\right)}\frac{dx}{\sqrt{x^3}}$
64743
How do I evaluate the integral $\int \frac{1}{x^3 -1}dx$
42758
How to find $ \int_0^\infty \dfrac x{1+e^x}\ dx$