1.1 problem 1

Internal problem ID [12545]

Book: DIFFERENTIAL EQUATIONS by Paul Blanchard, Robert L. Devaney, Glen R. Hall. 4th edition. Brooks/Cole. Boston, USA. 2012
Section: Chapter 1. First-Order Differential Equations. Exercises section 1.2. page 33
Problem number: 1.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

\[ \boxed {y^{\prime }-\frac {y+1}{t +1}=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 11

dsolve(diff(y(t),t)=(y(t)+1)/(t+1),y(t), singsol=all)
 

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

Solution by Mathematica

Time used: 0.045 (sec). Leaf size: 18

DSolve[y'[t]==(y[t]+1)/(t+1),y[t],t,IncludeSingularSolutions -> True]
 

\begin{align*} y(t)\to -1+c_1 (t+1) y(t)\to -1 \end{align*}