1.529 problem 543

Internal problem ID [8019]

Book: Collection of Kovacic problems
Section: section 1
Problem number: 543.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _exact, _linear, _homogeneous]]

\[ \boxed {x \left (x^{2}+1\right ) y^{\prime \prime }+\left (7 x^{2}+4\right ) y^{\prime }+8 y x=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 44

dsolve(x*(1+x^2)*diff(y(x),x$2)+(4+7*x^2)*diff(y(x),x)+8*x*y(x)=0,y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.076 (sec). Leaf size: 56

DSolve[x*(1+x^2)*y''[x]+(4+7*x^2)*y'[x]+8*x*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

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