3.12 problem 12

Internal problem ID [1679]

Book: Differential equations and their applications, 3rd ed., M. Braun
Section: Section 1.4. Page 24
Problem number: 12.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

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

Solution by Maple

Time used: 0.016 (sec). Leaf size: 5

dsolve([3*t*diff(y(t),t) = cos(t)*y(t),y(1) = 0],y(t), singsol=all)
 

\[ y \left (t \right ) = 0 \]

Solution by Mathematica

Time used: 0.001 (sec). Leaf size: 6

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

\[ y(t)\to 0 \]