(D³ – D²)y = cos2t
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:(D³ – D²)y = cos2t
1.
а. Ур
cos2t +
sin2t
10
20
1.
1.
b. Yp=-cos2t-sin2t
10
20
1.
C. Yp =
С. Ур
cos2t – 20
10
sin2t
d. yp=
T.
cos2t +
10
sin2t
20
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