Question

\( \begin{array}{l}y^{\prime \prime \prime}-3 y^{\prime \prime}+4 y=4 e^{x}-18 e^{-x} \\ y^{\prime \prime \prime}-3 y^{\prime \prime}+4 y=0 \\ m^{3}-3 m^{2}+4=0 \\ m^{2}-4 m+4=0 \\ (m-2)(m-2)=0\end{array} \)

          \( \begin{array}{l}y^{\prime \prime \prime}-3 y^{\prime \prime}+4 y=4 e^{x}-18 e^{-x} \\ y^{\prime \prime \prime}-3 y^{\prime \prime}+4 y=0 \\ m^{3}-3 m^{2}+4=0 \\ m^{2}-4 m+4=0 \\ (m-2)(m-2)=0\end{array} \)

y^'''-3 y^''+4 y=4 e^x-18 e^-x
y^'''-3 y^''+4 y=0
m^3-3 m^2+4=0
m^2-4 m+4=0
(m-2)(m-2)=0

Added by Philip W.

Advanced Engineering Mathematics

Erwin Kreyszig 9th Edition

Chapter 1

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Question

\( \begin{array}{l}y^{\prime \prime \prime}-3 y^{\prime \prime}+4 y=4 e^{x}-18 e^{-x} \\ y^{\prime \prime \prime}-3 y^{\prime \prime}+4 y=0 \\ m^{3}-3 m^{2}+4=0 \\ m^{2}-4 m+4=0 \\ (m-2)(m-2)=0\end{array} \)

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