El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\sin^{7}{\left(x^{5} - \sin{\left(3 x \right)} \right)} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = -99.9806492479522$$
$$x_{2} = 70.2499999981011$$
$$x_{3} = 92.249999999567$$
$$x_{4} = 60.6116756009818$$
$$x_{5} = 58.2499999961304$$
$$x_{6} = 74.2499068308659$$
$$x_{7} = 82.2500000003757$$
$$x_{8} = 40.1158610323148$$
$$x_{9} = 33.8290139776374$$
$$x_{10} = 11.9999999627514$$
$$x_{11} = 88.2500000004557$$
$$x_{12} = -83.7618729408116$$
$$x_{13} = 48.6850429091924$$
$$x_{14} = 94.2500000003024$$
$$x_{15} = 84.3804560759581$$
$$x_{16} = -41.9999606090919$$
$$x_{17} = 48.2501008497551$$
$$x_{18} = 32.0360969757979$$
$$x_{19} = -47.7499999969648$$
$$x_{20} = -56.0374219366207$$
$$x_{21} = 50.2499999959183$$
$$x_{22} = -29.7113705583617$$
$$x_{23} = -5.74997128489881$$
$$x_{24} = 72.0000000001031$$
$$x_{25} = 42.2188401643023$$
$$x_{26} = -21.9999999411737$$
$$x_{27} = 36.249991676967$$
$$x_{28} = 44.1236991334423$$
$$x_{29} = -11.9999999624646$$
$$x_{30} = 100.065652161503$$
$$x_{31} = -43.7746939527832$$
$$x_{32} = -37.9993511930839$$
$$x_{33} = -23.5959038400993$$
$$x_{34} = 56.2261392618303$$
$$x_{35} = -45.7499999996978$$
$$x_{36} = 8.17845862078152$$
$$x_{37} = 6.32100341670573$$
$$x_{38} = -57.7500000049102$$
$$x_{39} = -64.7145800606294$$
$$x_{40} = 62.0618173987482$$
$$x_{41} = -17.79919488766$$
$$x_{42} = 76.2500000003663$$
$$x_{43} = -90.0069381488546$$
$$x_{44} = -93.7502716340568$$
$$x_{45} = -77.8228999751449$$
$$x_{46} = 0$$
$$x_{47} = -33.7745754909243$$
$$x_{48} = -97.7500005512029$$
$$x_{49} = 27.993998957656$$
$$x_{50} = 4.20808852573951$$
$$x_{51} = 16.2499993478943$$
$$x_{52} = -53.7508846272705$$
$$x_{53} = -4.23776193412583$$
$$x_{54} = -72.000000000103$$
$$x_{55} = -75.7586725462826$$
$$x_{56} = -73.7500000003474$$
$$x_{57} = 14.2500003718896$$
$$x_{58} = 95.9999999631789$$
$$x_{59} = 54.2499972413532$$
$$x_{60} = 40.2291702037867$$
$$x_{61} = -28.3558762646033$$
$$x_{62} = -49.3522350709152$$
$$x_{63} = 90.000000000142$$
$$x_{64} = 21.9999999384818$$
$$x_{65} = 64.0012244449759$$
$$x_{66} = 10.2499978857698$$
$$x_{67} = -95.7499978693471$$
$$x_{68} = -14.0000001871185$$
$$x_{69} = -26.1431645796552$$
$$x_{70} = 46.1799846840561$$
$$x_{71} = -69.8845047384969$$
$$x_{72} = 24.0186422523299$$
$$x_{73} = 80.2486167393286$$
$$x_{74} = 2.26935664985658$$
$$x_{75} = 26.2495647491073$$
$$x_{76} = 21.9140101771594$$