2.8 problem Problem 1(h)

Internal problem ID [10881]

Book: APPLIED DIFFERENTIAL EQUATIONS The Primary Course by Vladimir A. Dobrushkin. CRC Press 2015
Section: Chapter 4, Second and Higher Order Linear Differential Equations. Problems page 221
Problem number: Problem 1(h).
ODE order: 3.
ODE degree: 1.

CAS Maple gives this as type [[_3rd_order, _linear, _nonhomogeneous]]

\[ \boxed {y^{\prime \prime \prime }+x y-\cosh \left (x \right )=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 2003

dsolve(diff(y(x),x$3)+x*y(x)=cosh(x),y(x), singsol=all)
 

\[ \text {Expression too large to display} \]

Solution by Mathematica

Time used: 17.758 (sec). Leaf size: 2213

DSolve[y'''[x]+x*y[x]==Cosh[x],y[x],x,IncludeSingularSolutions -> True]
 

Too large to display