Integrating $\int^u_0\frac{dx}{x^2+3x+2}$
12010
Integration by partial fractions; how and why does it work?
90095
Integrate $\int_0^{\infty } \frac{\cos x}{x} dx$
96191
Integral $\int_0^{\infty} \sin(x^2)/x^2\,dx$
61339
Integrating trigonometric function problem $\int \frac{3\sin x+2\cos x}{2\sin x+3\cos x}dx$
53438
I need assistance in integrating $ \frac{x \sin x}{1+(\cos x)^2}$
104691
Integration of $\int_{0}^{1} \frac{x^k}{1-x} dx$
117113
Integration of $x^2 \sin(x)$ by parts
140638
Integrating $\int_0^{\infty} \frac{dx}{1+x^3}$ using residues.
80319
Integrate: $\int (x^2+a^2)^{-3/2} \cdot dx$
41416
Integrating $ \int_2^4 \frac{ \sqrt{\ln(9-x)} }{ \sqrt{\ln(9-x)}+\sqrt{\ln(x+3)} } dx. $
150809
Compute $ \int_0^1\frac{\ln^2(1+x)}{1+x^2}\, dx$
69978
Evaluating $\int_1^\infty \frac{1}{x(x^2+1)}\ dx$
71982
Evaluating this integral $ \small\int \frac {x^2 dx} {(x\sin x+\cos x)^2} $
100180
Evaluate the integral $\int_0^\infty \frac{dx}{\sqrt{(x^3+a^3)(x^3+b^3)}}$
84683
integrate $dx/(a^2 \cos^2x+b^2 \sin^2x)^2$
63016
Integration of $\int\frac{1}{x^{4}+1}\mathrm dx$
67340
Integrate $\int \frac{dx}{\sqrt{\sin^3x\sin(x+\alpha)}}$