6.2 problem 2

Internal problem ID [569]

Book: Elementary differential equations and boundary value problems, 10th ed., Boyce and DiPrima
Section: Miscellaneous problems, end of chapter 2. Page 133
Problem number: 2.
ODE order: 1.
ODE degree: 1.

CAS Maple gives this as type [_separable]

\[ \boxed {y^{\prime }-\frac {\cos \left (x \right )+1}{2-\sin \left (y\right )}=0} \]

Solution by Maple

Time used: 0.0 (sec). Leaf size: 17

dsolve(diff(y(x),x) = (1+cos(x))/(2-sin(y(x))),y(x), singsol=all)
 

\[ x +\sin \left (x \right )-2 y \left (x \right )-\cos \left (y \left (x \right )\right )+c_{1} = 0 \]

Solution by Mathematica

Time used: 0.372 (sec). Leaf size: 27

DSolve[y'[x] == (1+Cos[x])/(2-Sin[y[x]]),y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \text {InverseFunction}[-2 \text {$\#$1}-\cos (\text {$\#$1})\&][-x-\sin (x)+c_1] \]