5. For each of the following functions say whether the indicated point isregular, an essential singularity, or a pole, and if a pole of what order itis.(a)(b)e²-1z² +4COSπ2- π2 =2i;2 = π;(5)(6)

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Answered: 5. For each of the following functions…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

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5. For each of the following functions say whether the indicated point is regular, an essential singularity, or a pole, and if a pole of what order it is. (a) (b) e² - 1 z² +4 COS ㅠ 2- π 2 = 2i; z = π; (5) (6)