2 a) z² sin 2, o<1Z) < R c) 1Z-2711 > D 1-cosz (2-221) 3

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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how to do a and c ?

3) Find the laurent series expansion for:
a) z² sin z
0<IZI<R
c)
IZ-2711 > D
1-cosz
(z-या) 3
>
b) Z-7
2242-2
2+32
d) z² + Z²
on i) 1 <12/<2; ii) 17) > 2
iii) D< |Z-11 <1
0<12/21
2
Transcribed Image Text:3) Find the laurent series expansion for: a) z² sin z 0<IZI<R c) IZ-2711 > D 1-cosz (z-या) 3 > b) Z-7 2242-2 2+32 d) z² + Z² on i) 1 <12/<2; ii) 17) > 2 iii) D< |Z-11 <1 0<12/21 2
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