I have attached a document, which contains two functions, which i ain't able to integrate myself. Please explain me how to do this.
Nevermind. I discovered that the proportion between the integrals was y=0,25*x^-1 - Two very complex integrals turned into a very easy thing.
EDIT: What kind of file should I be using? and Do you know a program which is always able to show the integral as a function? - unlike Ti-interactiv.