3.3 problem 23 (e)

Internal problem ID [5264]

Book: Schaums Outline. Theory and problems of Differential Equations, 1st edition. Frank Ayres. McGraw Hill 1952
Section: Chapter 5. Equations of first order and first degree (Exact equations). Supplemetary problems. Page 33
Problem number: 23 (e).
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_linear]

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

Solution by Maple

Time used: 0.0 (sec). Leaf size: 15

dsolve((x+y(x)*cos(x))+sin(x)*diff(y(x),x)=0,y(x), singsol=all)
 

\[ y \left (x \right ) = -\frac {\left (x^{2}-2 c_{1} \right ) \csc \left (x \right )}{2} \]

Solution by Mathematica

Time used: 0.038 (sec). Leaf size: 19

DSolve[(x+y[x]*Cos[x])+Sin[x]*y'[x]==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to -\frac {1}{2} \left (x^2-2 c_1\right ) \csc (x) \]