1 votes 1 votes If $f(z) = c_{0} + c_{1} z^{-1},$ then $\displaystyle{} \oint_{\text{unit circle}} \frac{1+f(z)}{z} dz$ is given by $2 \pi c_{1}$ $2 \pi\left(1+c_{0}\right)$ $2 \pi j c_{1}$ $2 \pi j\left(1+c_{0}\right)$ Others gate2009-ec + – admin asked Sep 15, 2022 • edited Jan 30, 2023 by Lakshman Bhaiya admin 46.4k points 88 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.