0 votes 0 votes If $C$ is a circle of radius $r$ with centre $z_{0},$ in the complex $z$-plane and if $n$ is a non-zero integer, then $\oint _{C}\frac{dz}{(z-z_{0})^{n+1}}$ equals $2\pi n j$ $0$ $\frac{nj}{2\pi}$ $2\pi n$ Complex Analysis gate2015-ec-3 vector-analysis + – Milicevic3306 asked Mar 27, 2018 • retagged Feb 28, 2021 by Lakshman Bhaiya Milicevic3306 16.0k points 136 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.