3.2 problem 2

Internal problem ID [5137]

Book: Engineering Mathematics. By K. A. Stroud. 5th edition. Industrial press Inc. NY. 2001
Section: Program 25. Second order differential equations. Test Excercise 25. page 1093
Problem number: 2.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {y^{\prime \prime }-4 y=10 \,{\mathrm e}^{3 x}} \]

Solution by Maple

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

dsolve(diff(y(x),x$2)-4*y(x)=10*exp(3*x),y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.017 (sec). Leaf size: 29

DSolve[y''[x]-4*y[x]==10*Exp[3*x],y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to e^{-2 x} \left (2 e^{5 x}+c_1 e^{4 x}+c_2\right ) \]