Integration of $\int \frac{e^x}{e^{2x} + 1}dx$
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$
98838
How to evaluate $\int_0^1 \frac{\ln(x+1)}{x^2+1} dx$
115992
Integrating $\frac{\log(1+x)}{1+x^2}$
88372
Integrate : $\int \frac{\sin x}{\sin4x} \,dx$
132383
Evaluate the integral $\int_{-1}^1\frac{dx}{(e^x+1)(x^2+1)}$.
32312
Evaluating the integral $\int \frac{x^2+x}{(e^x+x+1)^2}dx$
58909
Evaluation of $\int\frac{dx}{x+ \sqrt{x^2-x+1}}$
31964
Evaluating $\int_0^{\infty}\frac{\ln(x^2+1)}{x^2+1}dx$
45841
integral of $\int_{0}^{1}\frac{\ln(x^{2}+1)}{x+1}dx$ using contour integration?
104094
Integral of $\frac{1}{(1+x^2)^2}$
67533
A question on integration
145590
Compute the integral $\int\frac{dx}{(x^2-x+1)\sqrt{x^2+x+1}}$
89346
How do you integrate $\int \frac{1}{a + \cos x} dx$?
140638
Integrating $\int_0^{\infty} \frac{dx}{1+x^3}$ using residues.
59667
Evaluating $\int_0^\infty\frac{\sin(x)}{x^2+1}\, dx$
112621
Finding $\int_{0}^{\infty} \frac{e^{3x}-e^x}{x(e^{3x}+1)(e^x+1)} dx$
27195
Evaluating $\int_{0}^{1}\frac{1-x}{1+x}\frac{\mathrm dx}{\ln x}$