Let f(z) = cos z %3D The type of the singular point z, = 1 is: (z²–1)2 a) pole of order 2 b) pole of order 4 c) simple pole d) essential singular point e) removable singular point а. b. С. d. е.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
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cos z
Let f(z) =
The type of the singular point z, = 1 is:
%3D
(z2–1)2
a) pole of order 2
b) pole of order 4
c) simple pole
d) essential singular point
e) removable singular point
а.
b.
С.
d.
е.
Transcribed Image Text:cos z Let f(z) = The type of the singular point z, = 1 is: %3D (z2–1)2 a) pole of order 2 b) pole of order 4 c) simple pole d) essential singular point e) removable singular point а. b. С. d. е.
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