5.1 problem 2

Internal problem ID [2605]

Book: Differential equations with applications and historial notes, George F. Simmons, 1971
Section: Chapter 2, End of chapter, page 61
Problem number: 2.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, `class G`], _rational, [_Abel, `2nd type``class B`]]

\[ \boxed {\left (-y x +1\right ) y^{\prime }-y^{2}=0} \]

Solution by Maple

Time used: 0.016 (sec). Leaf size: 19

dsolve((1-x*y(x))*diff(y(x),x)=y(x)^2,y(x), singsol=all)
 

\[ y \left (x \right ) = {\mathrm e}^{-\operatorname {LambertW}\left (-x \,{\mathrm e}^{-c_{1}}\right )-c_{1}} \]

Solution by Mathematica

Time used: 2.074 (sec). Leaf size: 25

DSolve[(1-x*y[x])*y'[x]==y[x]^2,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to -\frac {W\left (-e^{-c_1} x\right )}{x} \\ y(x)\to 0 \\ \end{align*}