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Method of Undetermined Coefficients

For constant-coefficient equations with polynomial, exponential, or sinusoidal forcing, guess a particular solution of the same functional family with unknown coefficients and solve for them by substitution. When the guess duplicates a homogeneous solution, multiply by t (repeatedly if needed) to restore independence.

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For constant-coefficient equations with polynomial, exponential, or sinusoidal forcing, guess a particular solution of the same functional family with unknown coefficients and solve for them by substitution. When the guess duplicates a homogeneous solution, multiply by t (repeatedly if needed) to restore independence.

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