74.4.68 problem 65

Internal problem ID [15961]
Book : INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section : Chapter 2. First Order Equations. Exercises 2.2, page 39
Problem number : 65
Date solved : Tuesday, January 28, 2025 at 08:24:51 AM
CAS classification : [_quadrature]

\begin{align*} y^{\prime }&=y^{2}-y \end{align*}

✓ Solution by Maple

Time used: 0.003 (sec). Leaf size: 12

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

\[ y = \frac {1}{1+c_{1} {\mathrm e}^{t}} \]

✓ Solution by Mathematica

Time used: 0.225 (sec). Leaf size: 40

DSolve[D[y[t],t]==y[t]^2-y[t],y[t],t,IncludeSingularSolutions -> True]
 

\begin{align*} y(t)\to \text {InverseFunction}\left [\int _1^{\text {$\#$1}}\frac {1}{(K[1]-1) K[1]}dK[1]\&\right ][t+c_1] \\ y(t)\to 0 \\ y(t)\to 1 \\ \end{align*}