\[ y'(x)^2 \sin \left (y'(x)\right )-y(x)=0 \] ✓ Mathematica : cpu = 0.0798205 (sec), leaf count = 34
\[\text {Solve}\left [\left \{x=K[1] \sin (K[1])-\cos (K[1])+c_1,y(x)=K[1]^2 \sin (K[1])\right \},\{y(x),K[1]\}\right ]\] ✓ Maple : cpu = 0.069 (sec), leaf count = 32
\[y \relax (x ) = 0\]