El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\log{\left(\sin{\left(x^{3} + 0.0025 \right)} \right)}^{\frac{3}{2}} + \frac{0.001 \cdot 4}{5} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = -67.7501130866557$$
$$x_{2} = -59.7501143593341$$
$$x_{3} = -55.7501628056574$$
$$x_{4} = 52.2496079681947$$
$$x_{5} = 77.9999900661205$$
$$x_{6} = 48.0000038459458$$
$$x_{7} = -79.7499988538491$$
$$x_{8} = -97.7499737767808$$
$$x_{9} = 82.2500684107113$$
$$x_{10} = -73.7499266052202$$
$$x_{11} = 70.2496334965116$$
$$x_{12} = 60.2501456659897$$
$$x_{13} = -49.7502456873459$$
$$x_{14} = -89.7499994813999$$
$$x_{15} = -85.7498805387077$$
$$x_{16} = -91.7500648414207$$
$$x_{17} = -51.7504123009615$$
$$x_{18} = -57.7497166700695$$
$$x_{19} = 92.3184066548239$$
$$x_{20} = -69.7501699668206$$
$$x_{21} = 74.2500018709471$$
$$x_{22} = 100.249932456695$$
$$x_{23} = 90.2499382042118$$
$$x_{24} = 84.249923038206$$
$$x_{25} = -77.75011592649$$
$$x_{26} = -83.9999883978333$$
$$x_{27} = 86.2498338584246$$
$$x_{28} = 50.2499914800371$$
$$x_{29} = -75.7499131066861$$
$$x_{30} = 88.2499004619794$$
$$x_{31} = -65.7501525724269$$
$$x_{32} = -61.749827104815$$
$$x_{33} = 95.9038105434744$$
$$x_{34} = 62.2491849753028$$
$$x_{35} = 58.2499450838563$$
$$x_{36} = -53.7500154029685$$
$$x_{37} = 56.2500709401101$$
$$x_{38} = 94.2500365103871$$
$$x_{39} = 66.2499651415246$$
$$x_{40} = 72.2500087508273$$
$$x_{41} = -81.7499999021923$$
$$x_{42} = -47.750053892661$$
$$x_{43} = -99.7500988496036$$
$$x_{44} = -63.7501213705285$$
$$x_{45} = -95.7499719986494$$
$$x_{46} = 64.2499583786045$$
$$x_{47} = 76.000024438912$$
$$x_{48} = -93.7574190874809$$
$$x_{49} = -71.7500473622517$$
$$x_{50} = 68.2562238056015$$