1. Find the radius of convergence R of n=1 n! nn xn

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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Real Analysis II: For the power series, find the radius of convergence R Kindly find steps/examples for guide in photo II
Ex.
710
Solm. 1: α =
Soln 2
=
So R = O. So
2
an
x. Find R.O.C x "C"
Let
Tim
Tim
ny∞
(im sup | an "^ = (im Sup |n²|th = (in Suplo] = + 10
C
(= {0} &0²0² = 0·0²+1²+0² +
2² +0² +...
[₁₁]
tinnit
C
Tim
1300 GH
Cim
M-300
anti
R =
مnt مدم
n+1
2
nel
=
lim
3-18
or
Then Eanx Conv.
div. 1 |x|> R € R
if
R them the
R.O.C
exists
is
tím
1-30
So if α ER+
Dif
(im
AJP (n+1)^t!
½½e
-19. Thm Let Eanx" be a pacer Series and o-ling
90
0 if x = +∞0
dis
P
não
of
+∞.
A
n
MA
(n+1)/(m²+1)^
。 (ROC)
x <R & Rt and Eanx
Earx is
an
in 300 ant! if
thi
Transcribed Image Text:Ex. 710 Solm. 1: α = Soln 2 = So R = O. So 2 an x. Find R.O.C x "C" Let Tim Tim ny∞ (im sup | an "^ = (im Sup |n²|th = (in Suplo] = + 10 C (= {0} &0²0² = 0·0²+1²+0² + 2² +0² +... [₁₁] tinnit C Tim 1300 GH Cim M-300 anti R = مnt مدم n+1 2 nel = lim 3-18 or Then Eanx Conv. div. 1 |x|> R € R if R them the R.O.C exists is tím 1-30 So if α ER+ Dif (im AJP (n+1)^t! ½½e -19. Thm Let Eanx" be a pacer Series and o-ling 90 0 if x = +∞0 dis P não of +∞. A n MA (n+1)/(m²+1)^ 。 (ROC) x <R & Rt and Eanx Earx is an in 300 ant! if thi
4. Find the radius of convergence R of
n=1
n!
Nnxn
Transcribed Image Text:4. Find the radius of convergence R of n=1 n! Nnxn
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