I am confused on how to integrate this. This problem is asking me to find the integral using the definition of the integral is complex analysis. The function is

where is the contour from to . I don't see how to do this at all. How do I rewrite this in order to do this problem? There is probably a simple way to do this one, but I am not seeing it right now for some reason. Thanks in advance for an idea of where to go with this.