1.303 problem 304

Internal problem ID [7884]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 1, linear first order
Problem number: 304.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_homogeneous, class G], _rational]

Solve \begin {gather*} \boxed {\left (10 x^{3} y^{2}+y x^{2}+2 x \right ) y^{\prime }+5 y^{3} x^{2}+x y^{2}=0} \end {gather*}

Solution by Maple

Time used: 0.662 (sec). Leaf size: 44

dsolve((10*x^3*y(x)^2+x^2*y(x)+2*x)*diff(y(x),x)+5*x^2*y(x)^3+x*y(x)^2=0,y(x), singsol=all)
 

\[ y \relax (x ) = \frac {\tan \left (\RootOf \left (\sqrt {10}\, \ln \left (\frac {4 \left (\tan ^{2}\left (\textit {\_Z} \right )\right ) \left (\tan ^{2}\left (\textit {\_Z} \right )+1\right )}{5 x^{2}}\right )+2 \sqrt {10}\, c_{1}+2 \textit {\_Z} \right )\right ) \sqrt {10}}{5 x} \]

Solution by Mathematica

Time used: 0.291 (sec). Leaf size: 44

DSolve[(10*x^3*y[x]^2+x^2*y[x]+2*x)*y'[x]+5*x^2*y[x]^3+x*y[x]^2==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ \operatorname {Solve}\left [y(x) \sqrt {5 x^2 y(x)^2+2} e^{\frac {\operatorname {ArcTan}\left (\sqrt {\frac {5}{2}} x y(x)\right )}{\sqrt {10}}}=c_1,y(x)\right ] \]