Temos:

\(\[\begin{align} & \int{\frac{1}{y}+y{{e}^{\cos x}}}dx \\ & \int{y{{e}^{senx}}dx} \\ & ye.senx \\ \end{align}\] \)

Temos:

Logo:

Multiplicando:

\(\[\begin{align} & ye.senx.e.senx{}^\text{2}.y \\ & senx{}^\text{3}.e{}^\text{2}.y{}^\text{2}=0 \\ \end{align}\] \)