Elementary Differential Equations
10th Edition
ISBN: 9780470458327
Author: William E. Boyce, Richard C. DiPrima
Publisher: Wiley, John & Sons, Incorporated
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Chapter 5.4, Problem 12P
To determine
The general solution of the
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No chatgpt pls will upvote Already got wrong chatgpt answer
(c) Find the harmonic function on the annular region Q = {1 < r < 2} satisfying the
boundary conditions given by
U (1, 0) = 1,
U(2, 0) 1+15 sin (20).
=
Question 3
(a) Find the principal part of the PDE AU + UÃ + U₁ + x + y = 0 and determine
whether it's hyperbolic, elliptic or parabolic.
(b) Prove that if U(r, 0) solves the Laplace equation in R², then so is
V(r, 0) = U (², −0).
(c) Find the harmonic function on the annular region = {1 < r < 2} satisfying the
boundary conditions given by
U(1, 0) = 1,
U(2, 0) = 1 + 15 sin(20).
[5]
[7]
[8]
Chapter 5 Solutions
Elementary Differential Equations
Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 1 through 8, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...
Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - In each of Problems 9 through 16, determine the...Ch. 5.1 - Given that , compute y′ and y″ and write out the...Ch. 5.1 - Prob. 18PCh. 5.1 - Prob. 19PCh. 5.1 - Prob. 20PCh. 5.1 - Prob. 21PCh. 5.1 - Prob. 22PCh. 5.1 - Prob. 23PCh. 5.1 - Prob. 24PCh. 5.1 - Prob. 25PCh. 5.1 - Prob. 26PCh. 5.1 - Prob. 27PCh. 5.1 - Prob. 28PCh. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - Prob. 3PCh. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - Prob. 9PCh. 5.2 - Prob. 10PCh. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 1 through 14:
Seek power...Ch. 5.2 - In each of Problems 15 through 18:
(a) Find the...Ch. 5.2 - Prob. 16PCh. 5.2 - Prob. 17PCh. 5.2 - Prob. 18PCh. 5.2 - Prob. 19PCh. 5.2 - Prob. 20PCh. 5.2 - The Hermite Equation. The equation
y″ − 2xy′ + λy...Ch. 5.2 - Consider the initial value problem
Show that y =...Ch. 5.2 - Prob. 23PCh. 5.2 - Prob. 24PCh. 5.2 - Prob. 25PCh. 5.2 - Prob. 26PCh. 5.2 - Prob. 27PCh. 5.2 - Prob. 28PCh. 5.3 - In each of Problems 1 through 4, determine ϕ″(x0),...Ch. 5.3 - In each of Problems 1 through 4, determine ϕ″(x0),...Ch. 5.3 - In each of Problems 1 through 4, determine ϕ″(x0),...Ch. 5.3 - In each of Problems 1 through 4, determine ϕ″(x0),...Ch. 5.3 - In each of Problems 5 through 8, determine a lower...Ch. 5.3 - In each of Problems 5 through 8, determine a lower...Ch. 5.3 - In each of Problems 5 through 8, determine a lower...Ch. 5.3 - In each of Problems 5 through 8, determine a lower...Ch. 5.3 - Prob. 9PCh. 5.3 - Prob. 10PCh. 5.3 - For each of the differential equations in Problems...Ch. 5.3 - For each of the differential equations in Problems...Ch. 5.3 - For each of the differential equations in Problems...Ch. 5.3 - Prob. 14PCh. 5.3 - Prob. 15PCh. 5.3 - Prob. 16PCh. 5.3 - Prob. 17PCh. 5.3 - Prob. 18PCh. 5.3 - Prob. 19PCh. 5.3 - Prob. 20PCh. 5.3 - Prob. 21PCh. 5.3 - Prob. 22PCh. 5.3 - Prob. 23PCh. 5.3 - Prob. 24PCh. 5.3 - Prob. 25PCh. 5.3 - Prob. 26PCh. 5.3 - Prob. 27PCh. 5.3 - Prob. 28PCh. 5.3 - Prob. 29PCh. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - In each of Problems 1 through 12, determine the...Ch. 5.4 - Prob. 9PCh. 5.4 - Prob. 10PCh. 5.4 - Prob. 11PCh. 5.4 - Prob. 12PCh. 5.4 - Prob. 13PCh. 5.4 - Prob. 14PCh. 5.4 - Prob. 15PCh. 5.4 - Prob. 16PCh. 5.4 - Prob. 17PCh. 5.4 - Prob. 18PCh. 5.4 - Prob. 19PCh. 5.4 - Prob. 20PCh. 5.4 - Prob. 21PCh. 5.4 - Prob. 22PCh. 5.4 - Prob. 23PCh. 5.4 - Prob. 24PCh. 5.4 - Prob. 25PCh. 5.4 - In each of Problems 17 through 34, find all...Ch. 5.4 - Prob. 27PCh. 5.4 - Prob. 28PCh. 5.4 - Prob. 29PCh. 5.4 - Prob. 30PCh. 5.4 - Prob. 31PCh. 5.4 - Prob. 32PCh. 5.4 - Prob. 33PCh. 5.4 - Prob. 34PCh. 5.4 - Prob. 35PCh. 5.4 - Prob. 36PCh. 5.4 - Prob. 37PCh. 5.4 - Prob. 38PCh. 5.4 - Prob. 39PCh. 5.4 - Prob. 40PCh. 5.4 - Prob. 41PCh. 5.4 - Prob. 42PCh. 5.4 - Prob. 43PCh. 5.4 - Prob. 44PCh. 5.4 - Prob. 45PCh. 5.4 - Prob. 46PCh. 5.4 - Prob. 47PCh. 5.4 - Prob. 48PCh. 5.4 - Prob. 49PCh. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - Prob. 9PCh. 5.5 - In each of Problems 1 through 10:
Show that the...Ch. 5.5 - The Legendre equation of order α is
(1 − x2)y″ −...Ch. 5.5 - The Chebyshev equation is
(1 − x2)y″ − xy′ + α2y =...Ch. 5.5 - Prob. 13PCh. 5.5 - The Bessel equation of order zero is
x2y″ + xy′ +...Ch. 5.5 - Prob. 15PCh. 5.5 - Prob. 16PCh. 5.6 - In each of Problems 1 through 12:
Find all the...Ch. 5.6 - In each of Problems 1 through 12:
Find all the...Ch. 5.6 - In each of Problems 1 through 12:
Find all the...Ch. 5.6 - Prob. 4PCh. 5.6 - Prob. 5PCh. 5.6 - Prob. 6PCh. 5.6 - Prob. 7PCh. 5.6 - Prob. 8PCh. 5.6 - Prob. 9PCh. 5.6 - In each of Problems 1 through 12:
Find all the...Ch. 5.6 - In each of Problems 1 through 12:
Find all the...Ch. 5.6 - Prob. 12PCh. 5.6 - Prob. 13PCh. 5.6 - Prob. 14PCh. 5.6 - Prob. 15PCh. 5.6 - Prob. 16PCh. 5.6 - Prob. 18PCh. 5.6 - Consider the differential equation
where α and β...Ch. 5.6 - Prob. 21PCh. 5.7 - Prob. 1PCh. 5.7 - Prob. 2PCh. 5.7 - Prob. 3PCh. 5.7 - Prob. 4PCh. 5.7 - Prob. 5PCh. 5.7 - Prob. 6PCh. 5.7 - Prob. 7PCh. 5.7 - Prob. 8PCh. 5.7 - Prob. 9PCh. 5.7 - Prob. 10PCh. 5.7 - Prob. 11PCh. 5.7 - Prob. 12PCh. 5.7 - Prob. 13PCh. 5.7 - Prob. 14P
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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.arrow_forward(a) Write down the general solutions for the wave equation Utt - Uxx = 0. (b) Solve the following Goursat problem Utt-Uxx = 0, x = R Ux-t=0 = 4x2 Ux+t=0 = 0 (c) Describe the domain of influence and domain of dependence for wave equations. (d) Solve the following inhomogeneous wave equation with initial data. Utt - Uxx = 2, x ЄR U(x, 0) = 0 Ut(x, 0) = COS Xarrow_forwardQuestion 3 (a) Find the principal part of the PDE AU + Ux +U₁ + x + y = 0 and determine whether it's hyperbolic, elliptic or parabolic. (b) Prove that if U (r, 0) solves the Laplace equation in R2, then so is V (r, 0) = U (², −0). (c) Find the harmonic function on the annular region 2 = {1 < r < 2} satisfying the boundary conditions given by U(1, 0) = 1, U(2, 0) = 1 + 15 sin(20).arrow_forward
- 1c pleasearrow_forwardQuestion 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)e¯t of the heat equation U₁ = Uxx. Find the location of its maxima and minima in the rectangle Π {0≤ x ≤ 1, 0 ≤t≤T} 00} (explain your reasonings for every steps). U₁ = Uxxx>0 Ux(0,t) = 0 U(x, 0) = −1arrow_forwardCould 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.arrow_forward
- 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.arrow_forward(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.arrow_forwardQuestion 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]arrow_forward
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