1.545 problem 559

Internal problem ID [8035]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 559.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]

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

Solution by Maple

Time used: 0.016 (sec). Leaf size: 55

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

\[ y \left (x \right ) = \frac {c_{1} x}{\left (x^{2}-2\right )^{\frac {3}{2}}}+\frac {c_{2} \sqrt {2}\, x \left (2 \arctan \left (\frac {\sqrt {2}}{\sqrt {x^{2}-2}}\right )+\sqrt {2}\, \sqrt {x^{2}-2}\right )}{2 \left (x^{2}-2\right )^{\frac {3}{2}}} \]

Solution by Mathematica

Time used: 0.098 (sec). Leaf size: 58

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

\[ y(x)\to \frac {x \left (-\sqrt {2} c_2 \text {arctanh}\left (\sqrt {1-\frac {x^2}{2}}\right )+c_2 \sqrt {2-x^2}+c_1\right )}{\left (2-x^2\right )^{3/2}} \]