82.12.29 problem Ex. 32

Internal problem ID [18794]
Book : Introductory Course On Differential Equations by Daniel A Murray. Longmans Green and Co. NY. 1924
Section : Chapter II. Equations of the first order and of the first degree. Examples on chapter II at page 29
Problem number : Ex. 32
Date solved : Tuesday, January 28, 2025 at 12:17:44 PM
CAS classification : [_separable]

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

Solution by Maple

Time used: 0.001 (sec). Leaf size: 17

dsolve(y(x)-x*diff(y(x),x)=b*(1+x^2*diff(y(x),x)),y(x), singsol=all)
 
\[ y \left (x \right ) = \frac {c_{1} x +b}{b x +1} \]

Solution by Mathematica

Time used: 0.039 (sec). Leaf size: 24

DSolve[y[x]-x*D[y[x],x]==b*(1+x^2*D[y[x],x]),y[x],x,IncludeSingularSolutions -> True]
 
\begin{align*} y(x)\to \frac {b+c_1 x}{b x+1} \\ y(x)\to b \\ \end{align*}