5.3 problem Problem 24.19

Internal problem ID [5202]

Book: Schaums Outline Differential Equations, 4th edition. Bronson and Costa. McGraw Hill 2014
Section: Chapter 24. Solutions of linear DE by Laplace transforms. Supplementary Problems. page 248
Problem number: Problem 24.19.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [[_linear, `class A`]]

\[ \boxed {y^{\prime }+2 y={\mathrm e}^{x}} \] With initial conditions \begin {align*} [y \left (0\right ) = 1] \end {align*}

Solution by Maple

Time used: 0.343 (sec). Leaf size: 15

dsolve([diff(y(x),x)+2*y(x)=exp(x),y(0) = 1],y(x), singsol=all)
 

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

Solution by Mathematica

Time used: 0.04 (sec). Leaf size: 21

DSolve[{y'[x]+2*y[x]==Exp[x],{y[0]==1}},y[x],x,IncludeSingularSolutions -> True]
 

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