2.4 problem 4

Internal problem ID [890]

Book: Elementary differential equations with boundary value problems. William F. Trench. Brooks/Cole 2001
Section: Chapter 2, First order equations. Linear first order. Section 2.1 Page 41
Problem number: 4.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

Solve \begin {gather*} \boxed {y^{\prime } x +3 y=0} \end {gather*}

Solution by Maple

Time used: 0.002 (sec). Leaf size: 9

dsolve(x*diff(y(x),x) + 3*y(x)=0,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {c_{1}}{x^{3}} \]

Solution by Mathematica

Time used: 0.022 (sec). Leaf size: 16

DSolve[x*y'[x] +3*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {c_1}{x^3} \\ y(x)\to 0 \\ \end{align*}