3.5 problem 4(b)

Internal problem ID [10346]

Book: A First Course in Differential Equations by J. David Logan. Third Edition. Springer-Verlag, NY. 2015.
Section: Chapter 1, First order differential equations. Section 1.2 Antiderivatives. Exercises page 19
Problem number: 4(b).
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_quadrature]

\[ \boxed {x^{\prime }-\frac {1}{t \ln \left (t \right )}=0} \]

Solution by Maple

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

dsolve(diff(x(t),t)=1/(t*ln(t)),x(t), singsol=all)
 

\[ x \left (t \right ) = \ln \left (\ln \left (t \right )\right )+c_{1} \]

Solution by Mathematica

Time used: 0.008 (sec). Leaf size: 11

DSolve[x'[t]==1/(t*Log[t]),x[t],t,IncludeSingularSolutions -> True]
 

\begin{align*} x(t)\to \log (\log (t))+c_1 \\ \end{align*}