11.4 problem 16

Internal problem ID [14522]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 4. Higher Order Equations. Exercises 4.3, page 156
Problem number: 16.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

\[ \boxed {y^{\prime \prime }-y=-4+2 t} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 19

dsolve(diff(y(t),t$2)-y(t)=2*t-4,y(t), singsol=all)
 

\[ y \left (t \right ) = c_{2} {\mathrm e}^{-t}+{\mathrm e}^{t} c_{1} -2 t +4 \]

Solution by Mathematica

Time used: 0.013 (sec). Leaf size: 24

DSolve[y''[t]-y[t]==2*t-4,y[t],t,IncludeSingularSolutions -> True]
 

\[ y(t)\to -2 t+c_1 e^t+c_2 e^{-t}+4 \]