El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\tan{\left(\frac{11 x}{20} + \frac{1}{10} \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = - \frac{2}{11}$$
Solución numérica$$x_{1} = -23.0297647533803$$
$$x_{2} = -51.589697967833$$
$$x_{3} = 79.7859948186493$$
$$x_{4} = 85.4979814615398$$
$$x_{5} = -34.4537380391614$$
$$x_{6} = 39.8020883184155$$
$$x_{7} = -11.6057914675992$$
$$x_{8} = -40.1657246820519$$
$$x_{9} = -57.3016846107235$$
$$x_{10} = -68.7256578965046$$
$$x_{11} = 28.3781150326345$$
$$x_{12} = 96.9219547473209$$
$$x_{13} = -0.181818181818182$$
$$x_{14} = 56.9380482470872$$
$$x_{15} = -80.1496311822856$$
$$x_{16} = -91.5736044680667$$
$$x_{17} = -5.89380482470871$$
$$x_{18} = 68.3620215328682$$
$$x_{19} = 22.6661283897439$$
$$x_{20} = 74.0740081757587$$
$$x_{21} = 11.2421551039629$$
$$x_{22} = -17.3177781104898$$
$$x_{23} = 5.53016846107235$$
$$x_{24} = 45.5140749613061$$
$$x_{25} = -63.013671253614$$
$$x_{26} = -45.8777113249424$$
$$x_{27} = 91.2099681044303$$
$$x_{28} = 16.9541417468534$$
$$x_{29} = -97.2855911109572$$
$$x_{30} = 62.6500348899777$$
$$x_{31} = 102.633941390211$$
$$x_{32} = 34.090101675525$$
$$x_{33} = -85.8616178251762$$
$$x_{34} = -74.4376445393951$$
$$x_{35} = 51.2260616041966$$
$$x_{36} = -28.7417513962708$$