6.13 problem 159

Internal problem ID [3415]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 6
Problem number: 159.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

\[ \boxed {x y^{\prime }+\left (b x +a \right ) y=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 16

dsolve(x*diff(y(x),x)+(b*x+a)*y(x) = 0,y(x), singsol=all)
 

\[ y \left (x \right ) = c_{1} {\mathrm e}^{-x b} x^{-a} \]

Solution by Mathematica

Time used: 0.034 (sec). Leaf size: 24

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

\begin{align*} y(x)\to c_1 x^{-a} e^{-b x} y(x)\to 0 \end{align*}