Internal problem ID [5144]
Book: Engineering Mathematics. By K. A. Stroud. 5th edition. Industrial press Inc. NY.
2001
Section: Program 25. Second order differential equations. Further problems 25. page
1094
Problem number: 1.
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_2nd_order, _with_linear_symmetries]]
\[ \boxed {2 y^{\prime \prime }-7 y^{\prime }-4 y={\mathrm e}^{3 x}} \]
✓ Solution by Maple
Time used: 0.0 (sec). Leaf size: 23
dsolve(2*diff(y(x),x$2)-7*diff(y(x),x)-4*y(x)=exp(3*x),y(x), singsol=all)
\[ y \left (x \right ) = c_{2} {\mathrm e}^{4 x}+{\mathrm e}^{-\frac {x}{2}} c_{1} -\frac {{\mathrm e}^{3 x}}{7} \]
✓ Solution by Mathematica
Time used: 0.018 (sec). Leaf size: 33
DSolve[2*y''[x]-7*y'[x]-4*y[x]==Exp[3*x],y[x],x,IncludeSingularSolutions -> True]
\[ y(x)\to -\frac {e^{3 x}}{7}+c_1 e^{-x/2}+c_2 e^{4 x} \]