\[ \sin (x) \cos (x) y'(x)-y(x)-\sin ^3(x)=0 \] ✓ Mathematica : cpu = 0.0205003 (sec), leaf count = 15
\[\{\{y(x)\to c_1 \tan (x)-\sin (x)\}\}\] ✓ Maple : cpu = 0.01 (sec), leaf count = 13
\[ \left \{ y \left ( x \right ) =\tan \left ( x \right ) \left ( -\cos \left ( x \right ) +{\it \_C1} \right ) \right \} \]