Integration of 2x 1 3x 2 dx

- Integration of 5x 2 1 2x 3x 2 dx
- Integration of 1 2x 3x 2 4x 3 dx
- Integration of 2x 3 2x 2 3x 1 dx
- Integration of 3x 1 4 3x 2x 2 dx
- Integration of x 2 3x 1 2x dx
- Integration of 2x 3 3x 2 4x 5 2x 1 dx
- Integral of x/2x+1
- Integral of 2x/(1+x^2)
- Integration of 1/a^2+x^2 dx
- Integration of 1/(x^2+1)^2
- Integration of 1/(x+1)^2