5.41 problem 41

Internal problem ID [119]

Book: Differential equations and linear algebra, 3rd ed., Edwards and Penney
Section: Section 1.6, Substitution methods and exact equations. Page 74
Problem number: 41.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_exact, _rational]

\[ \boxed {\frac {2 x}{y}-\frac {3 y^{2}}{x^{4}}+\left (-\frac {x^{2}}{y^{2}}+\frac {1}{\sqrt {y}}+\frac {2 y}{x^{3}}\right ) y^{\prime }=0} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 35

dsolve(2*x/y(x)-3*y(x)^2/x^4+(-x^2/y(x)^2+1/y(x)^(1/2)+2*y(x)/x^3)*diff(y(x),x) = 0,y(x), singsol=all)
 

\[ \frac {2 y \left (x \right )^{\frac {3}{2}} x^{3}+c_{1} x^{3} y \left (x \right )+x^{5}+y \left (x \right )^{3}}{x^{3} y \left (x \right )} = 0 \]

Solution by Mathematica

Time used: 0.0 (sec). Leaf size: 0

DSolve[2*x/y[x]-3*y[x]^2/x^4+(-x^2/y[x]^2+1/y[x]^(1/2)+2*y[x]/x^3)*y'[x] == 0,y[x],x,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

Not solved