\[
\boxed{
{\frac {\rm d}{{\rm d}x}}y \left( x \right) =- \left( -{\frac {\ln  \left( y \left( x \right)  \right) }{x}}+{\frac {\cos \left( x \right) \ln  \left( y \left( x \right)  \right) }{\sin \left( x \right) }}-{\it \_F1} \left( x \right)  \right) y \left( x \right) =0}
\]