13.16 problem 37

Internal problem ID [5427]

Book: Schaums Outline. Theory and problems of Differential Equations, 1st edition. Frank Ayres. McGraw Hill 1952
Section: Chapter 18. Linear equations with variable coefficients (Equations of second order). Supplemetary problems. Page 120
Problem number: 37.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {x y^{\prime \prime }+2 y^{\prime }+4 x y=4} \]

Solution by Maple

Time used: 0.015 (sec). Leaf size: 22

dsolve(x*diff(y(x),x$2)+2*diff(y(x),x)+4*x*y(x)=4,y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.044 (sec). Leaf size: 38

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

\[ y(x)\to \frac {4 c_1 e^{-2 i x}-i c_2 e^{2 i x}+4}{4 x} \]