16.21 problem 22

Internal problem ID [13181]

Book: DIFFERENTIAL EQUATIONS by Paul Blanchard, Robert L. Devaney, Glen R. Hall. 4th edition. Brooks/Cole. Boston, USA. 2012
Section: Chapter 4. Forcing and Resonance. Section 4.1 page 399
Problem number: 22.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {y^{\prime \prime }+5 y^{\prime }+6 y=2} \] With initial conditions \begin {align*} [y \left (0\right ) = 0, y^{\prime }\left (0\right ) = 0] \end {align*}

Solution by Maple

Time used: 0.016 (sec). Leaf size: 18

dsolve([diff(y(t),t$2)+5*diff(y(t),t)+6*y(t)=2,y(0) = 0, D(y)(0) = 0],y(t), singsol=all)
 

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

Solution by Mathematica

Time used: 0.022 (sec). Leaf size: 26

DSolve[{y''[t]+5*y'[t]+6*y[t]==2,{y[0]==0,y'[0]==0}},y[t],t,IncludeSingularSolutions -> True]
 

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