7.10 problem 185

Internal problem ID [2933]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 7
Problem number: 185.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_Bernoulli]

Solve \begin {gather*} \boxed {y^{\prime } x +\left (1-a y \ln \relax (x )\right ) y=0} \end {gather*}

Solution by Maple

Time used: 0.0 (sec). Leaf size: 15

dsolve(x*diff(y(x),x)+(1-a*y(x)*ln(x))*y(x) = 0,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {1}{a \ln \relax (x )+c_{1} x +a} \]

Solution by Mathematica

Time used: 0.175 (sec). Leaf size: 22

DSolve[x y'[x]+(1-a y[x] Log[x])y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

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