IN THIS CHAPTER we extend the results obtained in Chapter 5 for linear second order equations to linear higher order equations.
SECTION 9.1 presents a theoretical introduction to linear higher order equations.
SECTION 9.2 discusses higher order constant coefficient homogeneous equations.
SECTION 9.3 presents the method of undetermined coefficients for higher order equations.
SECTION 9.4 extends the method of variation of parameters to higher order equations.
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