2.10 problem 11

Internal problem ID [7451]

Book: Second order enumerated odes
Section: section 2
Problem number: 11.
ODE order: 2.
ODE degree: 1.

CAS Maple gives this as type [[_2nd_order, _missing_y], _Liouville, [_2nd_order, _reducible, _mu_xy]]

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

Solution by Maple

Time used: 0.016 (sec). Leaf size: 14

dsolve(diff(y(x),x$2)+sin(x)*diff(y(x),x)+(diff(y(x),x))^2=0,y(x), singsol=all)
 

\[ y \left (x \right ) = \ln \left (c_{1} \left (\int {\mathrm e}^{\cos \left (x \right )}d x \right )+c_{2} \right ) \]

Solution by Mathematica

Time used: 60.089 (sec). Leaf size: 43

DSolve[y''[x]+Sin[x]*y'[x]+(y'[x])^2==0,y[x],x,IncludeSingularSolutions -> True]
 

\[ y(x)\to \int _1^x\frac {e^{\cos (K[2])}}{c_1-\int _1^{K[2]}-e^{\cos (K[1])}dK[1]}dK[2]+c_2 \]