Elementary Differential Equations and Boundary Value Problems, 11e WileyPLUS Registration Card + Loose-leaf Print Companion
11th Edition
ISBN: 9781119336617
Author: William E. Boyce, Richard C. DiPrima
Publisher: Wiley (WileyPLUS Products)
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Question
Chapter 1.3, Problem 18P
To determine
The order of the given partial differential equation and identify whether it is linear or non-linear.
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Could you please solve this question on a note book. please dont use AI because this is the third time i upload it and they send an AI answer. If you cant solve handwritten dont use the question send it back. Thank you.
(b) Consider the equation Ux - 2Ut
=
-3.
(i) Find the characteristics of this equation.
(ii) Find the general solutions of this equation.
(iii) Solve the following initial value problem for this equation
Ux - 2U₁ = −3
U(x, 0) = 0.
Question 4
(a) Find all possible values of a, b such that [sin(ax)]ebt solves the heat equation
U₁ = Uxx, x > 0.
(b) Consider the solution U(x,t) = (sin x)et of the heat equation U₁ = Uxx. Find the
location of its maxima and minima in the rectangle
πT
{0≤ x ≤½,0≤ t≤T}
2'
(c) Solve the following heat equation with boundary and initial condition on the half
line {x>0} (explain your reasonings for every steps).
Ut
=
Uxx, x > 0
Ux(0,t) = 0
U(x, 0) =
= =1
[4]
[6]
[10]
Chapter 1 Solutions
Elementary Differential Equations and Boundary Value Problems, 11e WileyPLUS Registration Card + Loose-leaf Print Companion
Ch. 1.1 - Prob. 1PCh. 1.1 - Prob. 2PCh. 1.1 - Prob. 3PCh. 1.1 - Prob. 4PCh. 1.1 - Prob. 5PCh. 1.1 - Prob. 6PCh. 1.1 - Prob. 7PCh. 1.1 - Prob. 8PCh. 1.1 - Prob. 9PCh. 1.1 - Prob. 10P
Ch. 1.1 - Prob. 11PCh. 1.1 - Prob. 12PCh. 1.1 - Prob. 13PCh. 1.1 - Prob. 14PCh. 1.1 - Prob. 15PCh. 1.1 - Prob. 16PCh. 1.1 - A pond initially contains 1,000,000 gal of water...Ch. 1.1 - Prob. 18PCh. 1.1 - Newtons law of cooling states that the temperature...Ch. 1.1 - Prob. 20PCh. 1.1 - Prob. 21PCh. 1.1 - Prob. 22PCh. 1.1 - Prob. 23PCh. 1.1 - Prob. 24PCh. 1.1 - In each of Problems 22 through 25, draw a...Ch. 1.2 - Prob. 1PCh. 1.2 - Prob. 2PCh. 1.2 - Prob. 3PCh. 1.2 - Prob. 4PCh. 1.2 - Undetermined Coefficients. Here is an alternative...Ch. 1.2 - Use the method of Problem 5 to solve the...Ch. 1.2 - Prob. 7PCh. 1.2 - Prob. 8PCh. 1.2 - Consider the falling object of mass 10 kg in...Ch. 1.2 - Prob. 10PCh. 1.2 - Prob. 11PCh. 1.2 - According to Newton’s law of cooling (see Problem...Ch. 1.2 - Prob. 13PCh. 1.2 - Prob. 14PCh. 1.3 - Prob. 1PCh. 1.3 - Prob. 2PCh. 1.3 - Prob. 3PCh. 1.3 - Prob. 4PCh. 1.3 - Prob. 5PCh. 1.3 - Prob. 6PCh. 1.3 - Prob. 7PCh. 1.3 - Prob. 8PCh. 1.3 - Prob. 9PCh. 1.3 - Prob. 10PCh. 1.3 - Prob. 11PCh. 1.3 - Prob. 12PCh. 1.3 - Prob. 13PCh. 1.3 - Prob. 14PCh. 1.3 - Prob. 15PCh. 1.3 - Prob. 16PCh. 1.3 - Prob. 17PCh. 1.3 - Prob. 18PCh. 1.3 - Prob. 19PCh. 1.3 - Prob. 20PCh. 1.3 - Prob. 21PCh. 1.3 - Prob. 23PCh. 1.3 - Prob. 24P
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