5.2 problem 2

Internal problem ID [14231]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 2. First Order Equations. Exercises 2.3, page 49
Problem number: 2.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_linear, `class A`]]

\[ \boxed {y^{\prime }-y=2 \,{\mathrm e}^{-t}} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 15

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

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

Solution by Mathematica

Time used: 0.056 (sec). Leaf size: 19

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

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