1. The problem statement, all variables and given/known data http://img4.imageshack.us/img4/898/integerqj5.jpg [Broken] 2. Relevant equations 3. The attempt at a solution It does appear to be a Riemann sum, I figured the 1/n is probably the width of the intervals and the sum in brackets is related to the sums of the heights of the rectangles. But my class didn't spend much time on Riemann sum's so I'm not sure I know how to continue.