# Integration of One over X

The integration of one over is another important formula of integration.

The integration of one over is of the form

Now consider

Integrating both sides of equation (i) with respect to , we have

Since integration and differentiation are reverse processes to each other, the integral sign and on the right side will cancel each other out, i.e.

__Example__**:** Evaluate the integral with respect to

We have integral

Using integration of one over , we have