Integration of 2x 1 x 3 dx

- Integration of 2x 1 x 2 4x 3 dx
- Integration of 2x x 2 1 * x 2 3 dx
- Integration of 2x 3 1 x 4 x dx
- Integration of x 3 2x 2 1 3 dx is equal to
- Integration of 1 cos 2x 3 sin 2 x dx
- Integration of 1 upon cos 2x 3 sin square x dx
- Integral of x/2x+1
- Integration of xdx
- Integration of 1/a^2+x^2 dx
- Integration of 1/(x+1)^2
- Integration of 1/(x^2+1)^2