\[ \sin (x) \cos (x) y'(x)-y(x)-\sin ^3(x)=0 \] ✓ Mathematica : cpu = 0.0199205 (sec), leaf count = 15
\[\{\{y(x)\to -\sin (x)+c_1 \tan (x)\}\}\] ✓ Maple : cpu = 0.012 (sec), leaf count = 13
\[ \left \{ y \left ( x \right ) = \left ( -\cos \left ( x \right ) +{\it \_C1} \right ) \tan \left ( x \right ) \right \} \]