3.411 problem 1412

Internal problem ID [9746]

Book: Differential Gleichungen, E. Kamke, 3rd ed. Chelsea Pub. NY, 1948
Section: Chapter 2, linear second order
Problem number: 1412.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries], [_2nd_order, _linear, `_with_symmetry_[0,F(x)]`]]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 23

dsolve(diff(diff(y(x),x),x) = 1/x/ln(x)*diff(y(x),x)+ln(x)^2*y(x),y(x), singsol=all)
 

\[ y \left (x \right ) = \sinh \left (x \left (-1+\ln \left (x \right )\right )\right ) c_{1} +\cosh \left (x \left (-1+\ln \left (x \right )\right )\right ) c_{2} \]

Solution by Mathematica

Time used: 0.031 (sec). Leaf size: 29

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

\[ y(x)\to c_1 \cosh (x (\log (x)-1))+i c_2 \sinh (x (\log (x)-1)) \]