What method can I use to solve$\int \frac {dx} {e^x - 1}$
18732
How do I evaluate $\int \frac{\mathrm{d}x}{e^x + 1} $?
18931
Is there really no way to integrate $e^{-x^2}$?
6830
Find $\int\frac1x\sqrt\frac{1-x}{1+x}\ dx$
95426
How to compute $ \frac{1}{\sqrt{2\pi}} \int_{-\infty}^\infty \frac{e^{-{x^2}/{2}}}{1+e^{-(ax+b)}}\,\mathrm dx $ when $b \ne 0$
109416
How to calculate $\int_0^1 \frac{\ln(1-x)}{x} dx$?
106544
Solve $ \frac{2}{\pi}\int_{-\pi}^\pi\frac{\sin\frac{9x}{2}}{\sin\frac{x}{2}}dx $
100569
Evaluating the improper integral $\int_{0}^{\infty} \frac{x^3}{e^{x}-1} dx$
112551
Demystify integration of $\int \frac{1}{x} \mathrm dx$
112621
Finding $\int_{0}^{\infty} \frac{e^{3x}-e^x}{x(e^{3x}+1)(e^x+1)} dx$
100194
Calculating $ \int _{0} ^{\infty} \frac{x^{3}}{e^{x}-1}\;dx$
70013
How to calculate $\int \frac{x^2 }{(x^2+1)^2} dx$?
67655
Simpler way to compute a definite integral without resorting to partial fractions?
100401
Evaluate $\int \frac{1}{(x^2+1)^2}dx$
62055
Solve $\frac{d}{dx}f(x)=f(x-1)$
69978
Evaluating $\int_1^\infty \frac{1}{x(x^2+1)}\ dx$
147977
Evaluate $\int_0^1\left(\frac{x-1}{x+1}\right)^n\frac{1}{\ln x} \,dx$
34762
Why isn't $\int \frac{1}{x}~dx = \frac{x^0}{0}$?