72.1.36 problem 3 (d)

Internal problem ID [19377]
Book : DIFFERENTIAL EQUATIONS WITH APPLICATIONS AND HISTORICAL NOTES by George F. Simmons. 3rd edition. 2017. CRC press, Boca Raton FL.
Section : Chapter 1. The Nature of Differential Equations. Separable Equations. Section 2. Problems at page 9
Problem number : 3 (d)
Date solved : Thursday, October 02, 2025 at 04:19:59 PM
CAS classification : [_quadrature]

\begin{align*} \left (x^{2}-1\right ) y^{\prime }&=1 \end{align*}

With initial conditions

\begin{align*} y \left (2\right )&=0 \\ \end{align*}

✓ Maple. Time used: 0.060 (sec). Leaf size: 14

ode:=(x^2-1)*diff(y(x),x) = 1; 
ic:=[y(2) = 0]; 
dsolve([ode,op(ic)],y(x), singsol=all);
 

\[ y = -\operatorname {arctanh}\left (x \right )+\operatorname {arctanh}\left (\frac {1}{2}\right )-\frac {i \pi }{2} \]

✓ Mathematica. Time used: 0.004 (sec). Leaf size: 27

ode=(x^2-1)*D[y[x],x]==1; 
ic={y[2]==0}; 
DSolve[{ode,ic},y[x],x,IncludeSingularSolutions->True]
 

\begin{align*} y(x)&\to \frac {1}{2} (\log (3-3 x)-\log (x+1)-i \pi ) \end{align*}

✓ Sympy. Time used: 0.101 (sec). Leaf size: 20

from sympy import * 
x = symbols("x") 
y = Function("y") 
ode = Eq((x**2 - 1)*Derivative(y(x), x) - 1,0) 
ics = {y(2): 0} 
dsolve(ode,func=y(x),ics=ics)
 

\[ y{\left (x \right )} = \frac {\log {\left (x - 1 \right )}}{2} - \frac {\log {\left (x + 1 \right )}}{2} + \frac {\log {\left (3 \right )}}{2} \]