Particular Solution of Constant Coefficient Linear nth Order ODE

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Theorem

Consider the linear $n$th order ODE with constant coefficients:

$(1): \quad \ds \sum_{k \mathop = 0}^n a_k \dfrac {\d^k y} {d x^k} = \map R x$

Let $(1)$ have the following $n$ initial conditions:

$(2): \quad y = y_0, \dfrac {\d y} {\d x} = y_1, \dotsc, \dfrac {\d^{n - 1} y} {\d x^{n - 1} } = y_{n - 1}$

when $x = x_0$.


Then there exists exactly one particular solution of $(1)$ which satisfies $(2)$.


Proof



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