12.24 problem 24

Internal problem ID [2197]

Book: Differential Equations by Alfred L. Nelson, Karl W. Folley, Max Coral. 3rd ed. DC heath. Boston. 1964
Section: Exercise 20, page 90
Problem number: 24.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _linear, _nonhomogeneous]]

\[ \boxed {4 y^{\prime \prime }-4 y^{\prime }+y={\mathrm e}^{\frac {x}{2}} \ln \left (x \right )} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 29

dsolve(4*diff(y(x),x$2)-4*diff(y(x),x)+y(x)=exp(x/2)*ln(x),y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {{\mathrm e}^{\frac {x}{2}} \left (\ln \left (x \right ) x^{2}-\frac {3 x^{2}}{2}+8 c_{1} x +8 c_{2} \right )}{8} \]

Solution by Mathematica

Time used: 0.027 (sec). Leaf size: 38

DSolve[4*y''[x]-4*y'[x]+y[x]==Exp[x/2]*Log[x],y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {1}{16} e^{x/2} \left (-3 x^2+2 x^2 \log (x)+16 c_2 x+16 c_1\right ) \]