Find-a-n-if-1-z-m-coth-piz-cot-zpi-n-0-a-n-z-n-around-z-0-

Question Number 136038 by frc2crc last updated on 18/Mar/21

F i n d a_{n} i f

\frac{1}{z^{m}} \times \coth (π z) \times \cot (z π) = \underset{n = 0}{\sum^{\infty}} a_{n} z^{n}

a r o u n d z = 0