El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$- \sin{\left(x \right)} + \frac{\cot^{2}{\left(x \right)}}{1} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = 76.2536912630428$$
$$x_{2} = 71.4011634556774$$
$$x_{3} = 58.8347928413183$$
$$x_{4} = 38.5545794199653$$
$$x_{5} = -73.1120986094531$$
$$x_{6} = -30.5604589590101$$
$$x_{7} = -16.5634308448368$$
$$x_{8} = 51.1209500343245$$
$$x_{9} = -399.837734582792$$
$$x_{10} = 82.5368765702224$$
$$x_{11} = 8.56931038388157$$
$$x_{12} = 83.9675340700366$$
$$x_{13} = 88.820061877402$$
$$x_{14} = 69.9705059558633$$
$$x_{15} = -41.6961720735551$$
$$x_{16} = -43.1268295733693$$
$$x_{17} = -47.9793573807347$$
$$x_{18} = -17.994088344651$$
$$x_{19} = 19.7050234984266$$
$$x_{20} = -54.2625426879143$$
$$x_{21} = -49.4100148805489$$
$$x_{22} = 33.7020516125999$$
$$x_{23} = -437.536846425869$$
$$x_{24} = 27.4188663054203$$
$$x_{25} = -1763.28894624076$$
$$x_{26} = 13.421838191247$$
$$x_{27} = 46.2684222269591$$
$$x_{28} = -3.9970602304776$$
$$x_{29} = 63.6873206486837$$
$$x_{30} = 14.8524956910612$$
$$x_{31} = -11.7109030374714$$
$$x_{32} = 39.9852369197795$$
$$x_{33} = 127.949831220294$$
$$x_{34} = -68.2595708020876$$
$$x_{35} = 21.1356809982407$$
$$x_{36} = 44.8377647271449$$
$$x_{37} = -61.9763854949081$$
$$x_{38} = -99.6754973379856$$
$$x_{39} = 32.2713941127857$$
$$x_{40} = -91.9616545309918$$
$$x_{41} = 77.684348762857$$
$$x_{42} = -98.2448398381714$$
$$x_{43} = 25.9882088056062$$
$$x_{44} = 115.383460605935$$
$$x_{45} = -5.42771773029178$$
$$x_{46} = 346.430659471765$$
$$x_{47} = -457.817059847222$$
$$x_{48} = -85.6784692238122$$
$$x_{49} = 96.5339046843958$$
$$x_{50} = -55.6932001877285$$
$$x_{51} = 2.28612507670199$$
$$x_{52} = -80.8259414164468$$
$$x_{53} = -10.2802455376572$$
$$x_{54} = -79.3952839166326$$
$$x_{55} = -35.4129867663755$$
$$x_{56} = -87.1091267236264$$
$$x_{57} = -24.2772736518305$$
$$x_{58} = -1059.57219183665$$
$$x_{59} = 90.2507193772162$$
$$x_{60} = -93.392312030806$$
$$x_{61} = 0.855467576887808$$
$$x_{62} = -60.5457279950939$$
$$x_{63} = -357.286094932349$$
$$x_{64} = 52.5516075341387$$