\[ a y'(x) \left | y'(x)\right | +b \sin (y(x))+y''(x)=0 \] ✗ Mathematica : cpu = 38.7453 (sec), leaf count = 0
, could not solve
DSolve[b*Sin[y[x]] + a*Abs[Derivative[1][y][x]]*Derivative[1][y][x] + Derivative[2][y][x] == 0, y[x], x]
✗ Maple : cpu = 0. (sec), leaf count = 0
, exception
numeric exception: division by zero