Homework Statement
\int_{|z-2i|=2} = \frac{dz}{z^2-9}
2. The attempt at a solution
I know that the contour described by |z-2i|=2 is a circle with a center of (0,2) (on the complex plane) with a radius of 2. The singularities of the integral fall outside of the contour (z+3 and...