El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$- 16 \sin{\left(x \right)} + 3 \cos{\left(x \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = \operatorname{atan}{\left(\frac{3}{16} \right)}$$
Solución numérica$$x_{1} = 56.734015714612$$
$$x_{2} = -84.6376536969287$$
$$x_{3} = -65.78809777539$$
$$x_{4} = -9.23943001077368$$
$$x_{5} = -90.9208390041083$$
$$x_{6} = 19.0349038715345$$
$$x_{7} = 9.61012591076507$$
$$x_{8} = 28.4596818323038$$
$$x_{9} = 12.7517185643549$$
$$x_{10} = -15.5226153179533$$
$$x_{11} = -87.7792463505185$$
$$x_{12} = -6.09783735718389$$
$$x_{13} = -56.3633198146206$$
$$x_{14} = 85.0083495969201$$
$$x_{15} = 50.4508304074324$$
$$x_{16} = 100.716312864869$$
$$x_{17} = 72.4419789825609$$
$$x_{18} = -59.5049124682104$$
$$x_{19} = 75.5835716361507$$
$$x_{20} = 41.026052446663$$
$$x_{21} = 59.8756083682018$$
$$x_{22} = -34.372171239492$$
$$x_{23} = -72.0712830825696$$
$$x_{24} = 103.857905518459$$
$$x_{25} = 3.32694060358549$$
$$x_{26} = -75.2128757361593$$
$$x_{27} = -31.2305785859022$$
$$x_{28} = -68.9296904289798$$
$$x_{29} = 63.0172010217916$$
$$x_{30} = -18.6642079715431$$
$$x_{31} = 6.46853325717528$$
$$x_{32} = -62.6465051218002$$
$$x_{33} = 91.2915349040997$$
$$x_{34} = -46.9385418538512$$
$$x_{35} = -12.3810226643635$$
$$x_{36} = 78.7251642897405$$
$$x_{37} = -37.5137638930818$$
$$x_{38} = -28.0889859323124$$
$$x_{39} = 25.318089178714$$
$$x_{40} = -94.0624316576981$$
$$x_{41} = -483.619920702832$$
$$x_{42} = -81.4960610433389$$
$$x_{43} = 53.5924230610222$$
$$x_{44} = -40.6553565466716$$
$$x_{45} = -24.9473932787227$$
$$x_{46} = -122.336765540006$$
$$x_{47} = 37.8844597930732$$
$$x_{48} = -78.3544683897491$$
$$x_{49} = -53.2217271610308$$
$$x_{50} = -2.9562447035941$$
$$x_{51} = -97.2040243112879$$
$$x_{52} = -21.8058006251329$$
$$x_{53} = 0.185347949995695$$
$$x_{54} = 66.1587936753813$$
$$x_{55} = 97.5747202112793$$
$$x_{56} = 88.1499422505099$$
$$x_{57} = 44.1676451002528$$
$$x_{58} = 22.1764965251242$$
$$x_{59} = 31.6012744858936$$
$$x_{60} = -50.080134507441$$
$$x_{61} = 69.3003863289711$$
$$x_{62} = 34.7428671394834$$
$$x_{63} = -43.7969492002614$$
$$x_{64} = 15.8933112179447$$
$$x_{65} = -100.345616964878$$
$$x_{66} = 81.8667569433303$$
$$x_{67} = 47.3092377538426$$
$$x_{68} = 94.4331275576895$$