Verify that the indicated family of functions is a solution of the given differential equation. Assume an appropriate interval I of definition for each solution. d²y dx² When y = c₁e4x + ₂xe¹x, dy = dx d²y dx² gdy + 16y=0; y = c₁₂e4x + ₁ dx = Thus, in terms of x, d²y dy - 8 + 16y = dx² dx = C₂xe4x + 16(c₁e4x + C₂xe4x)

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Question

11

Verify that the indicated family of functions is a solution of the given differential equation. Assume an appropriate interval I of definition for each solution.
d²y
dx²
When y = c₁e4x + ₂xe¹x,
dy =
dx
d²y
dx²
gdy + 16y=0; y = c₁₂e4x + ₁
dx
=
Thus, in terms of x,
d²y
dy
- 8 + 16y =
dx² dx
=
C₂xe4x
+ 16(c₁e4x +
C₂xe4x)
Transcribed Image Text:Verify that the indicated family of functions is a solution of the given differential equation. Assume an appropriate interval I of definition for each solution. d²y dx² When y = c₁e4x + ₂xe¹x, dy = dx d²y dx² gdy + 16y=0; y = c₁₂e4x + ₁ dx = Thus, in terms of x, d²y dy - 8 + 16y = dx² dx = C₂xe4x + 16(c₁e4x + C₂xe4x)
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