− (−1)″ n² 2" 9 =0--+1-−+1− 8 (a) Notice the that terms alternate, but some get larger in absolute value. Technically, can we use AST for this series? If all the terms after n = 4, get smaller in absolute value, could the "nested convergence" idea of the AST be applied to Sn, for n> 4? Explain or draw a diagram. 4. S= n=0 antl n-an 25 36 + 32 64 (b) Show steps and find lim ∞ (c) Based on (b), does S converge or diverge? Does T = converge or diverge? n=0 2"

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
4. S=
(-1)"
2"
=
|
(b) Show steps and find lim
11 00
9
R
36
+1-+-
32 64
an+1
an
E
2
2
n=0
(a) Notice the that terms alternate, but some get larger in absolute value. Technically, can we
use AST for this series? If all the terms after n = 4, get smaller in absolute value, could the
"nested convergence" idea of the AST be applied to Sn, for n> 4? Explain or draw a diagram.
4
3
(c) Based on (b), does S converge or diverge? Does T = converge or diverge?
n=0
2"
D
Transcribed Image Text:4. S= (-1)" 2" = | (b) Show steps and find lim 11 00 9 R 36 +1-+- 32 64 an+1 an E 2 2 n=0 (a) Notice the that terms alternate, but some get larger in absolute value. Technically, can we use AST for this series? If all the terms after n = 4, get smaller in absolute value, could the "nested convergence" idea of the AST be applied to Sn, for n> 4? Explain or draw a diagram. 4 3 (c) Based on (b), does S converge or diverge? Does T = converge or diverge? n=0 2" D
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