Going through my book I've found this problem which I can't seem to find the answer to.

Directions: Evaluate the definite integral of the algebraic function.

--------------------------

Problem: Inegral symbol (the bottom of the symbol there is a 1 and at the top a 4)

u-2/ u^(1/2) .

----------------------

Can anyone help me in answering this? This probably seems like a simple and dumb question, but it seems that my algebra may be a bit weak.

Thanks