1.7 problem 3(b)

Internal problem ID [875]

Book: Elementary differential equations with boundary value problems. William F. Trench. Brooks/Cole 2001
Section: Chapter 1, Introduction. Section 1.2 Page 14
Problem number: 3(b).
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_quadrature]

\[ \boxed {y^{\prime }=-\sin \left (x \right ) x} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 14

dsolve(diff(y(x),x) = -x*sin(x),y(x), singsol=all)
 

\[ y \left (x \right ) = -\sin \left (x \right )+\cos \left (x \right ) x +c_{1} \]

Solution by Mathematica

Time used: 0.006 (sec). Leaf size: 16

DSolve[y'[x] == -x*Sin[x],y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to -\sin (x)+x \cos (x)+c_1 \]