Def Int from 4-9 (x^1/2 + x^-1/2)^2 dx
I did do that and I still got stuck.
I got ... the def. integral from 4-9 of (2x^1/4 + 2x^-1/4)dx so that equals
(8x^5/4)/5 +3/(8x^3/4) + C. The main reason for my confusion is that the question is in the section of my textbook dedicated to Ln(x) so I thought that it was supposed to be part of the answer.