8.2 problem 2c

Internal problem ID [1088]

Book: Elementary differential equations with boundary value problems. William F. Trench. Brooks/Cole 2001
Section: Chapter 5 linear second order equations. Section 5.1 Homogeneous linear equations. Page 203
Problem number: 2c.
ODE order: 2.
ODE degree: 1.

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

\[ \boxed {y^{\prime \prime }-2 y^{\prime }+2 y=0} \] With initial conditions \begin {align*} [y \left (0\right ) = 3, y^{\prime }\left (0\right ) = -2] \end {align*}

Solution by Maple

Time used: 0.016 (sec). Leaf size: 16

dsolve([diff(y(x),x$2)-2*diff(y(x),x)+2*y(x)=0,y(0) = 3, D(y)(0) = -2],y(x), singsol=all)
 

\[ y \left (x \right ) = {\mathrm e}^{x} \left (-5 \sin \left (x \right )+3 \cos \left (x \right )\right ) \]

Solution by Mathematica

Time used: 0.014 (sec). Leaf size: 18

DSolve[{y''[x]-2*y'[x]+2*y[x]==0,{y[0]==3,y'[0]==-2}},y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to e^x (3 \cos (x)-5 \sin (x)) \]