The two parameter family of solutions of the DE: y" + 25y = 0 is y = c1 sin 5x + c2 cos 5x. Then, the BVP: y"+25y 0, y (0) 5, y'(z/5) = -5, has

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
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Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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The two parameter family of solutions of the DE:
y" + 25 y = 0 is
y = c sin 5x + c2 cos 5x.
Then, the BVP:
y" + 25y 0, y (0) = 5, y'(x/5) = -5,
has
Select one:
O no solution
O only one solution with cj = 1 and cz = 5
O None of these.
O infinitely many solutions with cj = 1
O infinitely many solutions with c2 = 5
Let y = ex and y, = ex be solutions for a
homogeneous DE. Then,
is also a
solution to the DE.
Select one:
O y = 4e-3x + 7e2x
O None of these.
O y = 4e-3x
+ 7e-2x
O y = 4e3x
+ 7e2x
O y = 4e3x + 7e-2x
The functions yı = ex and y2 = e3x are both
solutions for the homogeneous DE:
y" - 9y = 0.
Then, the general solution of nonhomogeneous DE
y" - 9y = -18x - 36
is
Select one:
O y = cjex + cze-3x - 2x – 4
O y = cje* + cze-3x - 2x + 4
O None of these.
O y = cjex + cze3x + 2x + 4
O y = cje* + cze-3x + 2x - 4
Transcribed Image Text:The two parameter family of solutions of the DE: y" + 25 y = 0 is y = c sin 5x + c2 cos 5x. Then, the BVP: y" + 25y 0, y (0) = 5, y'(x/5) = -5, has Select one: O no solution O only one solution with cj = 1 and cz = 5 O None of these. O infinitely many solutions with cj = 1 O infinitely many solutions with c2 = 5 Let y = ex and y, = ex be solutions for a homogeneous DE. Then, is also a solution to the DE. Select one: O y = 4e-3x + 7e2x O None of these. O y = 4e-3x + 7e-2x O y = 4e3x + 7e2x O y = 4e3x + 7e-2x The functions yı = ex and y2 = e3x are both solutions for the homogeneous DE: y" - 9y = 0. Then, the general solution of nonhomogeneous DE y" - 9y = -18x - 36 is Select one: O y = cjex + cze-3x - 2x – 4 O y = cje* + cze-3x - 2x + 4 O None of these. O y = cjex + cze3x + 2x + 4 O y = cje* + cze-3x + 2x - 4
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