7.23 problem 23

Internal problem ID [14366]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 2. First Order Equations. Exercises 2.5, page 64
Problem number: 23.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_linear]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 12

dsolve((t-y(t))+t*diff(y(t),t)=0,y(t), singsol=all)
 

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

Solution by Mathematica

Time used: 0.035 (sec). Leaf size: 14

DSolve[(t-y[t])+t*y'[t]==0,y[t],t,IncludeSingularSolutions -> True]
 

\[ y(t)\to t (-\log (t)+c_1) \]