1. The problem statement, all variables and given/known data http://img7.imageshack.us/img7/1764/capkgc.th.jpg [Broken] 2. Relevant equations 3. The attempt at a solution Okay I already got the result for the line integral along the circle, but I am confused how to get the line integral in the x-axis? To get the final result I just need to add both, right?