NIELIT 2018-28

Question

For the function $(z) = \frac{1}{z^2(e^z-1)}, z=0$ is a pole of order:

• A. $1$
• B. $2$
• C. $3$
• D. None of these

Comments

Is this part of Gate Syllabus?

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NO this comes under COMPLEX FUNCTIONS [TOPIC SINGULARITY & RESIDUES].

Answer 1

OPTION C is the answer.

refer:-> https://math.stackexchange.com/a/1006842/563694