Examveda

The residues of a function $${\text{f}}\left( {\text{z}} \right) = \frac{1}{{\left( {{\text{z}} - 4} \right){{\left( {{\text{z}} + 1} \right)}^3}}}$$    are

A. $$\frac{{ - 1}}{{27}}{\text{ and }}\frac{{ - 1}}{{125}}$$

B. $$\frac{1}{{125}}{\text{ and }}\frac{{ - 1}}{{125}}$$

C. $$\frac{{ - 1}}{{27}}{\text{ and }}\frac{1}{5}$$

D. $$\frac{1}{{125}}{\text{ and }}\frac{{ - 1}}{5}$$

Answer: Option B


This Question Belongs to Engineering Maths >> Complex Variable

Join The Discussion

Related Questions on Complex Variable