El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\left(\frac{156 \sin{\left(x^{\frac{13}{25}} + 2 \right)}}{625 x^{\frac{37}{25}}} - \frac{\frac{169}{25 x^{\frac{12}{25}}} \cos{\left(x^{\frac{13}{25}} + 2 \right)}}{25 x^{\frac{12}{25}}}\right)^{2} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución numérica$$x_{1} = 66.8362044716886$$
$$x_{2} = 66.8361984962132$$
$$x_{3} = 66.8362026325755$$
$$x_{4} = 120.10693407626$$
$$x_{5} = 66.8362052876964$$
$$x_{6} = 66.8361992542407$$
$$x_{7} = 365.697774289599$$
$$x_{8} = 66.8361968627007$$
$$x_{9} = 187.834046218632$$
$$x_{10} = 28.354052498109$$
$$x_{11} = 120.106931995072$$
$$x_{12} = 28.354042996139$$
$$x_{13} = 28.3540528932514$$
$$x_{14} = 66.8362211390672$$
$$x_{15} = 28.3540440754803$$
$$x_{16} = 28.3540491279587$$
$$x_{17} = 28.3540551563561$$
$$x_{18} = 28.354051648321$$
$$x_{19} = 66.8361982158566$$
$$x_{20} = 120.106931298377$$
$$x_{21} = 187.834051715024$$
$$x_{22} = 120.106924284604$$
$$x_{23} = 66.8362045373737$$
$$x_{24} = 66.8362062410537$$
$$x_{25} = 66.8362050954031$$
$$x_{26} = 120.106944482574$$
$$x_{27} = 66.836197368445$$
$$x_{28} = 66.836206152268$$
$$x_{29} = 5.11246228336918$$
$$x_{30} = 66.8362004036114$$
$$x_{31} = 120.106939752668$$
$$x_{32} = 66.8362058634231$$
$$x_{33} = 66.8362063770678$$
$$x_{34} = 5.11246325411061$$
$$x_{35} = 28.3540464149357$$
$$x_{36} = 66.8362036561206$$
$$x_{37} = 66.8362003831804$$
$$x_{38} = 28.354045734379$$
$$x_{39} = 5.11246239034504$$
$$x_{40} = 28.3540474940189$$
$$x_{41} = 28.3540530236492$$
$$x_{42} = 5.11245527028751$$
$$x_{43} = 66.8362015283181$$
$$x_{44} = 66.8361969816095$$
$$x_{45} = 28.3540524121254$$
$$x_{46} = 28.3540439471807$$
$$x_{47} = 28.3540505231348$$