1.9 problem Problem 11.10

Internal problem ID [5171]

Book: Schaums Outline Differential Equations, 4th edition. Bronson and Costa. McGraw Hill 2014
Section: Chapter 11. THE METHOD OF UNDETERMINED COEFFICIENTS. page 95
Problem number: Problem 11.10.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {y^{\prime \prime }-5 y=2 \,{\mathrm e}^{5 x}} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 28

dsolve(diff(y(x),x$2)-5*y(x)=2*exp(5*x),y(x), singsol=all)
 

\[ y \left (x \right ) = {\mathrm e}^{\sqrt {5}\, x} c_{2} +{\mathrm e}^{-\sqrt {5}\, x} c_{1} +\frac {{\mathrm e}^{5 x}}{10} \]

Solution by Mathematica

Time used: 0.021 (sec). Leaf size: 40

DSolve[y''[x]-5*y[x]==2*Exp[5*x],y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {e^{5 x}}{10}+c_1 e^{\sqrt {5} x}+c_2 e^{-\sqrt {5} x} \]