El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\tan{\left(\sin{\left(x \right)} + 1 \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = - \frac{\pi}{2}$$
$$x_{2} = \frac{3 \pi}{2}$$
Solución numérica$$x_{1} = -1.57079643199443$$
$$x_{2} = 4.71239019644292$$
$$x_{3} = -76.96902041001$$
$$x_{4} = -7.85398269020657$$
$$x_{5} = 48.6946858978578$$
$$x_{6} = 10.9955748639755$$
$$x_{7} = 42.4115024088219$$
$$x_{8} = 10.9955739093189$$
$$x_{9} = 80.1106131354551$$
$$x_{10} = -70.6858343300779$$
$$x_{11} = -7.85398149656918$$
$$x_{12} = 67.544242315245$$
$$x_{13} = 4.71238985571921$$
$$x_{14} = 73.8274274832874$$
$$x_{15} = -58.1194656130349$$
$$x_{16} = 54.9778710687743$$
$$x_{17} = -32.9867223000109$$
$$x_{18} = 67.5442412460802$$
$$x_{19} = -76.9690194635944$$
$$x_{20} = -95.8185758680506$$
$$x_{21} = -70.6858352850067$$
$$x_{22} = -26.7035381210561$$
$$x_{23} = 17.2787599891856$$
$$x_{24} = -1.57079480870224$$
$$x_{25} = 23.5619440732466$$
$$x_{26} = -51.8362786893236$$
$$x_{27} = -58.1194639976202$$
$$x_{28} = 48.6946870318153$$
$$x_{29} = -83.2522044931411$$
$$x_{30} = -64.4026502754876$$
$$x_{31} = 29.8451288080341$$
$$x_{32} = -39.2699084191442$$
$$x_{33} = -45.5530935912553$$
$$x_{34} = 54.9778720283877$$
$$x_{35} = 98.9601691932503$$
$$x_{36} = 98.9601682281043$$
$$x_{37} = 92.6769830563601$$
$$x_{38} = -39.2699073192401$$
$$x_{39} = -20.4203531005847$$
$$x_{40} = -32.9867232502722$$
$$x_{41} = 42.4115007273976$$
$$x_{42} = 29.8451303232969$$
$$x_{43} = -26.7035371705182$$
$$x_{44} = -83.2522055776567$$
$$x_{45} = 86.3937978869411$$
$$x_{46} = -89.5353892292739$$
$$x_{47} = -64.4026491606153$$
$$x_{48} = 61.2610571490454$$
$$x_{49} = 4.7123887393585$$
$$x_{50} = 17.2787590425008$$
$$x_{51} = 73.8274260123369$$
$$x_{52} = -45.5530920212189$$
$$x_{53} = 23.5619451566272$$
$$x_{54} = 92.6769842091351$$
$$x_{55} = 10.9955739051428$$
$$x_{56} = 61.2610562056857$$
$$x_{57} = -14.1371684002672$$
$$x_{58} = 36.12831575977$$
$$x_{59} = -14.137166836983$$
$$x_{60} = -20.4203520019901$$
$$x_{61} = -89.5353907504018$$