6.2 problem 5(d)

Internal problem ID [1713]

Book: Differential equations and their applications, 3rd ed., M. Braun
Section: Section 2.1, second order linear differential equations. Page 134
Problem number: 5(d).
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _exact, _linear, _homogeneous]]

\[ \boxed {2 t^{2} y^{\prime \prime }+3 t y^{\prime }-y=0} \] With initial conditions \begin {align*} [y \left (1\right ) = 2, y^{\prime }\left (1\right ) = 1] \end {align*}

Solution by Maple

Time used: 0.015 (sec). Leaf size: 9

dsolve([2*t^2*diff(y(t),t$2)+3*t*diff(y(t),t)-y(t)=0,y(1) = 2, D(y)(1) = 1],y(t), singsol=all)
 

\[ y \left (t \right ) = 2 \sqrt {t} \]

Solution by Mathematica

Time used: 0.012 (sec). Leaf size: 12

DSolve[{2*t^2*y''[t]+3*t*y'[t]-y[t]==0,{y[1]==2,y'[1]==1}},y[t],t,IncludeSingularSolutions -> True]
                                                                                    
                                                                                    
 

\[ y(t)\to 2 \sqrt {t} \]