1.173 problem 174

Internal problem ID [7754]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 1, linear first order
Problem number: 174.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

Solve \begin {gather*} \boxed {x \left (x^{2}+1\right ) y^{\prime }+y x^{2}=0} \end {gather*}

Solution by Maple

Time used: 0.015 (sec). Leaf size: 13

dsolve(x*(x^2+1)*diff(y(x),x) + x^2*y(x)=0,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {c_{1}}{\sqrt {x^{2}+1}} \]

Solution by Mathematica

Time used: 0.033 (sec). Leaf size: 22

DSolve[x*(x^2+1)*y'[x] + x^2*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {c_1}{\sqrt {x^2+1}} \\ y(x)\to 0 \\ \end{align*}