How to do integral $\int\frac1{x^3+x+1}dx$?
158760
How calculate the indefinite integral $\int\frac{1}{x^3+x+1}dx$
108554
Integrating $\int_0^\infty\frac{1}{1+x^6}dx$
43699
How do I integrate $\int \frac{dx}{\sin^3 x + \cos^3 x}$?
140638
Integrating $\int_0^{\infty} \frac{dx}{1+x^3}$ using residues.
39629
Indefinite integration of $\int \frac{1}{1+\sqrt{x^2+2x+2}}dx$
93205
Compute: $\int_{0}^{1}\frac{x^4+1}{x^6+1} dx$
69978
Evaluating $\int_1^\infty \frac{1}{x(x^2+1)}\ dx$
50471
Evaluate $\int\frac1{1+x^n}dx$ for $n\in\mathbb R$
146338
How to evaluate $\int\frac{1+x^4}{(1-x^4)^{3/2}}dx$?
45872
Integration: $\int\frac{1}{(x^2+x+1)^{1/2}} dx$
125735
How do I evaluate $\int_{1/3}^3 \frac{\arctan x}{x^2 - x + 1} \; dx$?
132124
$\int_{0}^{\infty}\frac{x}{x^3+1}dx$ =?
80736
How to integrate $\int\frac{\sqrt{1+x^2}}{x}\,\mathrm dx$
53519
Finding $\int_0^1{\frac{x^4(1-x)^4}{1+x^2}}dx$
38005
Integral of $\sin (x^3)dx$
12859
Find $\int \frac{x^3}{x^2-1} \:\mathrm{d}x$
38515
Integral of $\frac{1}{x^4+1}$