El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\tan^{2}{\left(x^{2} + e \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = -7.75329421602523$$
$$x_{2} = -48.0571941784846$$
$$x_{3} = -27.3518255715235$$
$$x_{4} = 28.2557577254643$$
$$x_{5} = 80.2538986638968$$
$$x_{6} = 53.9983452809999$$
$$x_{7} = 96.3200208530893$$
$$x_{8} = -9.72990700611514$$
$$x_{9} = -19.7479315299506$$
$$x_{10} = 36.2437448507108$$
$$x_{11} = 42.2474607321603$$
$$x_{12} = -32.1559838072986$$
$$x_{13} = -22.0051943692205$$
$$x_{14} = 35.8953520460438$$
$$x_{15} = 72.0003554795671$$
$$x_{16} = 0.65062396256291$$
$$x_{17} = -4.01637572359881$$
$$x_{18} = -72.0003554796099$$
$$x_{19} = 66.2512509149475$$
$$x_{20} = -13.7447761002274$$
$$x_{21} = 25.9974177811478$$
$$x_{22} = -45.7463005959095$$
$$x_{23} = 83.9277906289654$$
$$x_{24} = 19.9851339205774$$
$$x_{25} = 16.2578317624565$$
$$x_{26} = 64.2532182594334$$
$$x_{27} = -6.17433576789437$$
$$x_{28} = 18.0002042801772$$
$$x_{29} = 89.9969397948853$$
$$x_{30} = 22.0051943675343$$
$$x_{31} = 5.35701835937967$$
$$x_{32} = 49.4744781474701$$
$$x_{33} = 85.9436305913839$$
$$x_{34} = -51.7099473877413$$
$$x_{35} = 4.01637571983654$$
$$x_{36} = -99.7174210447458$$
$$x_{37} = 1.88809536549291$$
$$x_{38} = 48.2529114818638$$
$$x_{39} = -86.8164966256636$$
$$x_{40} = 67.9831310243921$$
$$x_{41} = 52.2538737957806$$
$$x_{42} = -75.6805570618868$$
$$x_{43} = -53.9983452856021$$
$$x_{44} = 3.60411993709236$$
$$x_{45} = -77.7486178429192$$
$$x_{46} = 70.2333523046068$$
$$x_{47} = -84.0026214483314$$
$$x_{48} = -77.9100784018882$$
$$x_{49} = -18.0002042804803$$
$$x_{50} = -43.745322467275$$
$$x_{51} = 98.0013880126525$$
$$x_{52} = -91.9993147794395$$
$$x_{53} = 12.0389606320569$$
$$x_{54} = -65.7514623562323$$
$$x_{55} = 39.9936741489103$$
$$x_{56} = -61.607363490405$$
$$x_{57} = 32.2535343575753$$
$$x_{58} = 74.255763526794$$
$$x_{59} = -27.7509191003753$$
$$x_{60} = 24.2466727058367$$
$$x_{61} = -35.7638297774697$$
$$x_{62} = 56.2495076698173$$
$$x_{63} = 78.2520759625291$$
$$x_{64} = -2.58969047160292$$
$$x_{65} = -34.0077845058871$$
$$x_{66} = 91.9993147783393$$
$$x_{67} = -67.7516802541584$$
$$x_{68} = -89.7522527582173$$
$$x_{69} = 30.2427970597821$$