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Find a solution to y″+9y=6sin(3t).
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3 votes
Find a solution to y″+9y=6sin(3t).

User Manikandan Thangaraj
by
8.2k points

1 Answer

6 votes
y" + 9y = 0
m^2 + 9 = 0
m = ± 3i

yH = C1 cos 3t + C2 sin 3t

yP = C3 t sin 3t + C4 t cos 3t
hope this helps
User Andras Hegedus
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