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y'' + 16y = 0; y1 = cos 4x  y''−y=0; y1 =cosh(x) the indicated function y1(x) is a solution of the given differential equation. Use reduction of order or formula (5), as instructed, to find a second solution y2(x).

y'' + 16y = 0; y1 = cos 4x  y''−y=0; y1 =cosh(x) the indicated function y1(x) is a solution of the given differential equation. Use reduction of order or formula (5), as instructed, to find a second solution y2(x).

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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  1. y'' + 16y = 0; y1 = cos 4x 

    1. y''−y=0; y1 =cosh(x)

    the indicated function y1(x) is a solution of the given differential equation. Use reduction of order or formula (5), as instructed, to find a second solution y2(x).

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