El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{\left(\cos{\left(x \right)} - 1\right) \log{\left(1 - 4 x \right)}}{\left(\left(x - \sin{\left(x \right)}\right) + 1\right)^{2}} - \frac{4}{\left(1 - 4 x\right) \left(\left(x - \sin{\left(x \right)}\right) + 1\right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = -57.1547496952088$$
$$x_{2} = -82.2706909256186$$
$$x_{3} = -101.111032253835$$
$$x_{4} = -18.1658294578678$$
$$x_{5} = -244.49941184885$$
$$x_{6} = -94.830686480541$$
$$x_{7} = -19.5051366591165$$
$$x_{8} = -49.6452041364403$$
$$x_{9} = -30.767254147557$$
$$x_{10} = -11.8510706336009$$
$$x_{11} = -99.9470562479228$$
$$x_{12} = -37.0618551414417$$
$$x_{13} = -93.6607280640045$$
$$x_{14} = -24.4693426487098$$
$$x_{15} = -5.50397568680359$$
$$x_{16} = -68.5122109353518$$
$$x_{17} = -62.2239420759581$$
$$x_{18} = -81.087220162315$$
$$x_{19} = -13.2360378411046$$
$$x_{20} = -50.8770356071023$$
$$x_{21} = -126.234140076815$$
$$x_{22} = -43.3542891493565$$
$$x_{23} = -88.5505615828931$$
$$x_{24} = -38.3240759729153$$
$$x_{25} = -6.95942670373164$$
$$x_{26} = -63.4330703793637$$
$$x_{27} = -44.6000765807981$$
$$x_{28} = -55.9350005534674$$
$$x_{29} = -75.991115626651$$
$$x_{30} = -69.7118870555891$$
$$x_{31} = -32.0493163178226$$
$$x_{32} = -87.3741311192192$$
$$x_{33} = -817.315943617635$$
$$x_{34} = -74.7999379884745$$
$$x_{35} = -25.7761849327039$$