Show that using integrals
I guess....First I have to show that the integral from 1 to 5 of is equal to .
Then estimate the integral by a finite sum of left endpoints.
Since 1/x is decreasing from 1 to 5, the finite sum I get will be strictly greater than the integral.
But I don't know how to show the steps....
How do I show that the integral from 1 to 5 of is equal to ?
How do I estimate the integral by a finite sum of left endpoints?