The value of A00 is, 1 1 :// xydxdy A00 0 0 4 The value of Amo is, 1 1 Amo = 2 ху cos mлxdxdy 0 0 1 cOS mл — 1 -ydy m² n? = 2 (-1)" –1 %D m² n2

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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I don't understand why Amo=2(integral) and not 4/(pi)^2. Can you please explain it to me. Thank you 

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Apply the superposition principle in the above equation,
u (x, y, t) = A00 +
,Amoe-km²n?1
Aone
-kn²n?t
cos nty
cOS тлх +
%3D
n=1
n=1
(13)
00
e
cOS mлx cos nлу
m=1 n=1
At boundary conditions -o = 0, - = 0,
0, -
ди
ди
ди
ди
E 0 and u (х, у, 0) — ху,
dx Ix=0
dx Ix=1
dy ly=0
ду
The value of A00 is,
1
1
4
A00
хуахdy
0 0
4
The value of Amo is,
1
1
Amo = 2
ху сos mлxdxdy
0 0
1
1
-ydy
coS mл
= 2
m²n²
(-1)" –1
||
m² n2
The value of Aon is,
1
1
Aon = 2
ху сos плуdxdy
0 0
(-1)"–1
n2 72
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Transcribed Image Text:10:35 PM Sun Apr 25 * 68% AA bartleby.com G E Wall dec E Parametric... E Decorative R... G DeVilbiss iFil... Problems 1 a... Facebook = bartleby Q Search for textbooks, step-by-step explanatio... Ask an Expert Math / Bundle: Differential Equations with Boundary-Value Proble... / In Problems 1 and 2 solve the heat equation (1) subj... : In Problems 1 and 2 solve the heat equation (1) subject to the given conditions. 2. d u... Get live help whenever you need from online tutors! Try bartleby tutor today > Apply the superposition principle in the above equation, u (x, y, t) = A00 + ,Amoe-km²n?1 Aone -kn²n?t cos nty cOS тлх + %3D n=1 n=1 (13) 00 e cOS mлx cos nлу m=1 n=1 At boundary conditions -o = 0, - = 0, 0, - ди ди ди ди E 0 and u (х, у, 0) — ху, dx Ix=0 dx Ix=1 dy ly=0 ду The value of A00 is, 1 1 4 A00 хуахdy 0 0 4 The value of Amo is, 1 1 Amo = 2 ху сos mлxdxdy 0 0 1 1 -ydy coS mл = 2 m²n² (-1)" –1 || m² n2 The value of Aon is, 1 1 Aon = 2 ху сos плуdxdy 0 0 (-1)"–1 n2 72 X GET 10 FREE QUESTIONS 1 1
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