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06-04-2017
Mathematics

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Find a solution to y″+9y=6sin(3t).

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MissBatwoman MissBatwoman

06-04-2017

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

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