3. a. Solve the following initial boundary value problem for the heat equation ди Ət J²u = D მე2 " 00 u(x, 0) = f(x) u(0,t) = u(L,t) = 0, t>0, 9пх when f(x) = 6 sin L b. Solve the following initial boundary value problem for the diffusion equation ди J²u Ət = D მე2 " 00 u(x, 0) = f(x) Əx = ди მე (L,t) = 0, t>0, ди (0, t): 0, x

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter11: Differential Equations
Section11.1: Solutions Of Elementary And Separable Differential Equations
Problem 59E: According to the solution in Exercise 58 of the differential equation for Newtons law of cooling,...
Question

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3. a. Solve the following initial boundary value problem for the heat equation
ди
Ət
J²u
= D
მე2
"
0<x<L, t>0
u(x, 0) = f(x)
u(0,t) = u(L,t) = 0, t>0,
9пх
when f(x) = 6 sin
L
b. Solve the following initial boundary value problem for the diffusion equation
ди J²u
Ət
= D
მე2
"
0<x<L, t>0
u(x, 0) = f(x)
Əx
=
ди
მე
(L,t) = 0, t>0,
ди
(0, t):
0,
x <L/2
1,
x L/2.
=
when f(x)=
Transcribed Image Text:3. a. Solve the following initial boundary value problem for the heat equation ди Ət J²u = D მე2 " 0<x<L, t>0 u(x, 0) = f(x) u(0,t) = u(L,t) = 0, t>0, 9пх when f(x) = 6 sin L b. Solve the following initial boundary value problem for the diffusion equation ди J²u Ət = D მე2 " 0<x<L, t>0 u(x, 0) = f(x) Əx = ди მე (L,t) = 0, t>0, ди (0, t): 0, x <L/2 1, x L/2. = when f(x)=
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