1.3 problem Problem 14.2 (c)

Internal problem ID [2488]

Book: Mathematical methods for physics and engineering, Riley, Hobson, Bence, second edition, 2002
Section: Chapter 14, First order ordinary differential equations. 14.4 Exercises, page 490
Problem number: Problem 14.2 (c).
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

\[ \boxed {y^{\prime } x^{2}+y^{2} x -4 y^{2}=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 17

dsolve(x^2*diff(y(x),x)+x*y(x)^2=4*y(x)^2,y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {x}{4+x \ln \left (x \right )+c_{1} x} \]

Solution by Mathematica

Time used: 0.146 (sec). Leaf size: 25

DSolve[y'[x]+x*y[x]^2==4*y[x]^2,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to \frac {2}{x^2-8 x-2 c_1} \\ y(x)\to 0 \\ \end{align*}