29.31.10 problem 909

Internal problem ID [5489]
Book : Ordinary differential equations and their solutions. By George Moseley Murphy. 1960
Section : Various 31
Problem number : 909
Date solved : Sunday, March 30, 2025 at 08:18:32 AM
CAS classification : [_separable]

\begin{align*} x^{2} {y^{\prime }}^{2}-5 x y y^{\prime }+6 y^{2}&=0 \end{align*}

✓ Maple. Time used: 0.002 (sec). Leaf size: 17

ode:=x^2*diff(y(x),x)^2-5*x*diff(y(x),x)*y(x)+6*y(x)^2 = 0; 
dsolve(ode,y(x), singsol=all);
 

\begin{align*} y &= c_1 \,x^{3} \\ y &= c_1 \,x^{2} \\ \end{align*}

✓ Mathematica. Time used: 0.045 (sec). Leaf size: 26

ode=x^2 (D[y[x],x])^2-5 x y[x] D[y[x],x]+6 y[x]^2==0; 
ic={}; 
DSolve[{ode,ic},y[x],x,IncludeSingularSolutions->True]
 

\begin{align*} y(x)\to c_1 x^2 \\ y(x)\to c_1 x^3 \\ y(x)\to 0 \\ \end{align*}

✓ Sympy. Time used: 0.170 (sec). Leaf size: 14

from sympy import * 
x = symbols("x") 
y = Function("y") 
ode = Eq(x**2*Derivative(y(x), x)**2 - 5*x*y(x)*Derivative(y(x), x) + 6*y(x)**2,0) 
ics = {} 
dsolve(ode,func=y(x),ics=ics)
 

\[ \left [ y{\left (x \right )} = C_{1} x^{3}, \ y{\left (x \right )} = C_{1} x^{2}\right ] \]