3.146 problem 1150

Internal problem ID [9480]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1150.
ODE order: 2.
ODE degree: 1.

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

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

Solution by Maple

Time used: 0.016 (sec). Leaf size: 27

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

\[ y \left (x \right ) = \frac {\left (c_{1} x +c_{2} \right ) \cos \left (x \right )+\sin \left (x \right ) \left (x c_{2} -c_{1} \right )}{x} \]

Solution by Mathematica

Time used: 0.023 (sec). Leaf size: 21

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

\[ y(x)\to x (c_1 j_1(x)-c_2 y_1(x)) \]