Question

What is the definite integral from 1 to 2 of `(ln x)/xdx`?

Answer 1

0,24

Explanation:

We may use the substitution technique of integration and let u = ln x.
Then du = 1/x dx.
We then change the limits of integration to the new values in terms of u.
Then perform the integration and use the Fundamental Theorem of Calculus to evaluate the answer between the necessary limits.
Details shown in the attached sketch.