Internal problem ID [8023]
Book: Collection of Kovacic problems
Section: section 1
Problem number: 547.
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]
\[ \boxed {9 x^{2} \left (x^{2}+1\right ) y^{\prime \prime }+3 x \left (13 x^{2}+3\right ) y^{\prime }-\left (-25 x^{2}+1\right ) y=0} \]
✓ Solution by Maple
Time used: 0.015 (sec). Leaf size: 38
dsolve(9*x^2*(1+x^2)*diff(y(x),x$2)+3*x*(3+13*x^2)*diff(y(x),x)-(1-25*x^2)*y(x)=0,y(x), singsol=all)
\[ y \left (x \right ) = \frac {c_{1}}{\left (x^{2}+1\right )^{\frac {2}{3}} x^{\frac {1}{3}}}+\frac {c_{2} \left (\int \frac {1}{\left (x^{3}+x \right )^{\frac {1}{3}}}d x \right )}{\left (x^{2}+1\right )^{\frac {2}{3}} x^{\frac {1}{3}}} \]
✓ Solution by Mathematica
Time used: 0.115 (sec). Leaf size: 124
DSolve[9*x^2*(1+x^2)*y''[x]+3*x*(3+13*x^2)*y'[x]-(1-25*x^2)*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
\[ y(x)\to \frac {2 \sqrt {3} c_2 \arctan \left (\frac {\sqrt {3} x^{2/3}}{x^{2/3}+2 \sqrt [3]{x^2+1}}\right )-2 c_2 \log \left (\sqrt [3]{x^2+1}-x^{2/3}\right )+c_2 \log \left (x^{4/3}+\left (x^2+1\right )^{2/3}+\sqrt [3]{x^2+1} x^{2/3}\right )+4 c_1}{4 \sqrt [3]{x} \left (x^2+1\right )^{2/3}} \]