Internal problem ID [5957]
Book: DIFFERENTIAL EQUATIONS with Boundary Value Problems. DENNIS G. ZILL,
WARREN S. WRIGHT, MICHAEL R. CULLEN. Brooks/Cole. Boston, MA. 2013. 8th
edition.
Section: CHAPTER 7 THE LAPLACE TRANSFORM. EXERCISES 7.5. Page 315
Problem number: 15(b).
ODE order: 2.
ODE degree: 1.
CAS Maple gives this as type [[_2nd_order, _linear, _nonhomogeneous]]
Solve \begin {gather*} \boxed {y^{\prime \prime }+2 y^{\prime }+10 y-\left (\delta \relax (t )\right )=0} \end {gather*} With initial conditions \begin {align*} [y \relax (0) = 0, y^{\prime }\relax (0) = 0] \end {align*}
✓ Solution by Maple
Time used: 0.126 (sec). Leaf size: 18
dsolve([diff(y(t),t$2)+2*diff(y(t),t)+10*y(t)=Dirac(t),y(0) = 0, D(y)(0) = 0],y(t), singsol=all)
\[ y \relax (t ) = \frac {{\mathrm e}^{-t} \sin \left (3 t \right ) \left (2 \theta \relax (t )-1\right )}{6} \]
✓ Solution by Mathematica
Time used: 0.009 (sec). Leaf size: 25
DSolve[{y''[t]+2*y'[t]+10*y[t]==DiracDelta[t],{y[0]==0,y'[0]==0}},y[t],t,IncludeSingularSolutions -> True]
\begin{align*} y(t)\to \frac {1}{3} e^{-t} (\theta (t)-\theta (0)) \sin (3 t) \\ \end{align*}