(D4 + 18D2 + 81)y = 0 (A y = (c, + c,) cos3x + (c,+c,) sin3x. (B у %3 (с, + сх) cos:3x + (с,+c) sin3x. © y = (c, + €zx)e¯*cos3x + (c3+Cx) sin3x. (D y = (c, + czx)e“cos3x + (c,+cx)e²
(D4 + 18D2 + 81)y = 0 (A y = (c, + c,) cos3x + (c,+c,) sin3x. (B у %3 (с, + сх) cos:3x + (с,+c) sin3x. © y = (c, + €zx)e¯*cos3x + (c3+Cx) sin3x. (D y = (c, + czx)e“cos3x + (c,+cx)e²
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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Transcribed Image Text:(D4 + 18D2 + 81)y = 0
(A
y = (c, + c,) cos3x + (c,+c,) sin3x.
(B
y = (c, + czx) cos3.x + (cz+c_x) sin3x.
© y = (c, + €zx)e¯*cos3x + (c3+€x) sin3x.
(D
y = (c, + czx)e“cos3x + (c,+cx)e²
e?^sin3x.
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