30.32 problem 892

Internal problem ID [3620]

Book: Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section: Various 30
Problem number: 892.
ODE order: 1.
ODE degree: 2.

CAS Maple gives this as type [_separable]

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

Solution by Maple

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

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

\begin{align*} y \relax (x ) = c_{1} x \\ y \relax (x ) = \frac {c_{1}}{x} \\ \end{align*}

Solution by Mathematica

Time used: 0.039 (sec). Leaf size: 24

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

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