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Please use the method of undetermined coefficients to find the form of the particular solution (WITHOUT...

Please use the method of undetermined coefficients to find the form of the particular solution (WITHOUT SOLVING FOR CONSTANTS) of the following ODEs

y''+5y'+6y=−t+e−3t+te−2t+e−3tcos(t)

y''+3y'+2y = et(t2+ 1)sin(2t)+3e−t cos(t)+4et

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