1.40 problem 47

Internal problem ID [14084]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 1. Introduction to Differential Equations. Exercises 1.1, page 10
Problem number: 47.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_quadrature]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 10

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

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

Solution by Mathematica

Time used: 0.072 (sec). Leaf size: 12

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

\[ y(x)\to 2 e^{-2 x} \]