Please can somebody give me hint for this?
For $n\ne -1$ $$\frac{1}{2\pi i}\int_{C} z^ndz=0$$
Where C is a simple closed curve with the usual positive orientation and its inside.
Please can somebody give me hint for this?
For $n\ne -1$ $$\frac{1}{2\pi i}\int_{C} z^ndz=0$$
Where C is a simple closed curve with the usual positive orientation and its inside.