Expand the given function in a Maclaurin series. f(z) = 1 6 - 2z

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10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Expand the given function in a Maclaurin series.
f(z)
6 - 2z
2(()*
k
k = 0
X
Give the radius of convergence R of the series.
R = 3
Transcribed Image Text:Expand the given function in a Maclaurin series. f(z) 6 - 2z 2(()* k k = 0 X Give the radius of convergence R of the series. R = 3
We know that,
tere,
put
-
21
1-W
=
1
f(z) = 6-27
W= Z
N/M
3
=
flz) = 6 (1-3)
11
ANSWER
11
1+W+ W² +
11
in 0,
&
1+
3+ (3) ¹²+ (3)³+
(3) K
ZK
NÅR & WA
From @ f(z) + (1-5)
K=
f(z) =
3K
{(x) 2²
(-).
R=
X
6-2Z
8
K=O
3
for
=
f(x) =
Radious of Convergence_ R=3
for 1W/<1.
Ⓡ
6
(六):
for 12123
1Z1 <3
✓ I 3 K ZK for 12143
k=0
=) zk
fur 1121.
fo
Σ (SK) ZK for (Z1 <3)
K=D
fr 1213.
Transcribed Image Text:We know that, tere, put - 21 1-W = 1 f(z) = 6-27 W= Z N/M 3 = flz) = 6 (1-3) 11 ANSWER 11 1+W+ W² + 11 in 0, & 1+ 3+ (3) ¹²+ (3)³+ (3) K ZK NÅR & WA From @ f(z) + (1-5) K= f(z) = 3K {(x) 2² (-). R= X 6-2Z 8 K=O 3 for = f(x) = Radious of Convergence_ R=3 for 1W/<1. Ⓡ 6 (六): for 12123 1Z1 <3 ✓ I 3 K ZK for 12143 k=0 =) zk fur 1121. fo Σ (SK) ZK for (Z1 <3) K=D fr 1213.
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