5.17 problem 17

Internal problem ID [14246]

Book: INTRODUCTORY DIFFERENTIAL EQUATIONS. Martha L. Abell, James P. Braselton. Fourth edition 2014. ElScAe. 2014
Section: Chapter 2. First Order Equations. Exercises 2.3, page 49
Problem number: 17.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_linear]

\[ \boxed {y^{\prime }+2 y \cot \left (x \right )=\cos \left (x \right )} \]

Solution by Maple

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

dsolve(diff(y(x),x)+2*y(x)*cot(x)=cos(x),y(x), singsol=all)
 

\[ y \left (x \right ) = \frac {\sin \left (x \right )}{3}+\csc \left (x \right )^{2} c_{1} \]

Solution by Mathematica

Time used: 0.047 (sec). Leaf size: 19

DSolve[y'[x]+2*y[x]*Cot[x]==Cos[x],y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \frac {\sin (x)}{3}+c_1 \csc ^2(x) \]