12.27 problem Ex 28

Internal problem ID [11207]

Book: An elementary treatise on differential equations by Abraham Cohen. DC heath publishers. 1906
Section: Chapter 2, differential equations of the first order and the first degree. Article 19. Summary. Page 29
Problem number: Ex 28.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_Bernoulli]

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

Solution by Maple

Time used: 0.016 (sec). Leaf size: 13

dsolve(x*diff(y(x),x)+y(x)-y(x)^2*ln(x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {1}{1+x c_{1} +\ln \left (x \right )} \]

Solution by Mathematica

Time used: 0.233 (sec). Leaf size: 20

DSolve[x*y'[x]+y[x]-y[x]^2*Log[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {1}{\log (x)+c_1 x+1} y(x)\to 0 \end{align*}