\[ \sin (x) \cos (x) y'(x)-y(x)-\sin ^3(x)=0 \] ✓ Mathematica : cpu = 0.0340805 (sec), leaf count = 15
\[\{\{y(x)\to -\sin (x)+c_1 \tan (x)\}\}\] ✓ Maple : cpu = 0.037 (sec), leaf count = 13
\[\{y \left (x \right ) = \left (c_{1}-\cos \left (x \right )\right ) \tan \left (x \right )\}\]