9.14 problem 46

Internal problem ID [208]

Book: Differential equations and linear algebra, 3rd ed., Edwards and Penney
Section: Section 5.3, second order linear equations. Page 323
Problem number: 46.
ODE order: 2.
ODE degree: 1.

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

Solve \begin {gather*} \boxed {y^{\prime \prime }-i y^{\prime }+6 y=0} \end {gather*}

Solution by Maple

Time used: 0.0 (sec). Leaf size: 19

dsolve(diff(y(x),x$2)-I*diff(y(x),x)+6*y(x)=0,y(x), singsol=all)
 

\[ y \relax (x ) = c_{1} {\mathrm e}^{-2 i x}+c_{2} {\mathrm e}^{3 i x} \]

Solution by Mathematica

Time used: 0.003 (sec). Leaf size: 26

DSolve[y''[x]-I*y'[x]+6*y[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\begin{align*} y(x)\to e^{-2 i x} \left (c_1 e^{5 i x}+c_2\right ) \\ \end{align*}