Value of integration
10806
Find the value of $\int_{-\infty}^\infty \int_{-\infty}^\infty e^{-(x^2+xy+y^2)} \, dx\,dy$
145364
units in indefinite integral
133337
A little integration paradox
32642
The formalism behind integration by substitution
15468
Average integral symbol
45872
Integration: $\int\frac{1}{(x^2+x+1)^{1/2}} dx$
59792
Can someone explain how integration by parts was done?
94481
Integrating for speed
152977
Integrate $\int\sqrt{x+\sqrt{x^{2}+2}} dx$ .
129318
Integrate via substitution and derivation rule
44066
What is the meaning of the integral of position?
38935
What is integration by parts, really?
10790
Integration of a function with respect to another function.
120705
How to find integration with Unknown
106878
How to integrate $\int \frac{e^x dx}{1\,+\,e^{2x}}$
51170
Evaluation of Differentiation and Integration
115992
Integrating $\frac{\log(1+x)}{1+x^2}$