El gráfico de la función cruce el eje X con f = 0
o sea hay que resolver la ecuación:
$$\frac{\sqrt{16 - x^{2}}}{x^{4}} = 0$$
Resolvermos esta ecuaciónPuntos de cruce con el eje X:
Solución analítica$$x_{1} = -4$$
$$x_{2} = 4$$
Solución numérica$$x_{1} = -39785.5816225657$$
$$x_{2} = -10161.0781669177$$
$$x_{3} = 13667.990949263$$
$$x_{4} = -26231.0921697871$$
$$x_{5} = 41611.4158872334$$
$$x_{6} = 20435.1172117486$$
$$x_{7} = 32291.5947258337$$
$$x_{8} = -36396.4547596521$$
$$x_{9} = 15358.6037132749$$
$$x_{10} = 10291.5731358206$$
$$x_{11} = -41480.2244887855$$
$$x_{12} = -20304.0599193594$$
$$x_{13} = -19457.6549545773$$
$$x_{14} = 28903.1854060709$$
$$x_{15} = 28056.1595567111$$
$$x_{16} = -32160.4311103213$$
$$x_{17} = -21150.5626311877$$
$$x_{18} = -11004.221365473$$
$$x_{19} = 27209.17008655$$
$$x_{20} = -33854.7801801167$$
$$x_{21} = -9318.81234796079$$
$$x_{22} = 39069.4645068151$$
$$x_{23} = 33138.7616896878$$
$$x_{24} = -22843.8169139366$$
$$x_{25} = 19588.6963580567$$
$$x_{26} = 38222.1729697784$$
$$x_{27} = 33985.9506047988$$
$$x_{28} = -34701.9863967462$$
$$x_{29} = 23821.6548251258$$
$$x_{30} = -38938.2787432516$$
$$x_{31} = 14513.1584198588$$
$$x_{32} = 4$$
$$x_{33} = 36527.633660397$$
$$x_{34} = -14382.2813176826$$
$$x_{35} = -24537.3447048965$$
$$x_{36} = 12823.1593602497$$
$$x_{37} = -35549.2117044653$$
$$x_{38} = 9449.15597677803$$
$$x_{39} = 24668.457986244$$
$$x_{40} = 29750.2444905106$$
$$x_{41} = 25515.3149837601$$
$$x_{42} = -15227.6870580544$$
$$x_{43} = -17765.1957708784$$
$$x_{44} = -23690.5503542027$$
$$x_{45} = 17896.1981273848$$
$$x_{46} = 21281.6339068224$$
$$x_{47} = -27925.0187688001$$
$$x_{48} = -12692.3877211303$$
$$x_{49} = -16919.1777701103$$
$$x_{50} = 16204.2815179034$$
$$x_{51} = -29619.0933822206$$
$$x_{52} = 26362.2205504835$$
$$x_{53} = -13537.1614041394$$
$$x_{54} = 42458.7560354704$$
$$x_{55} = -40632.8971305893$$
$$x_{56} = 18742.3846810476$$
$$x_{57} = 11978.7393437104$$
$$x_{58} = 11134.8315740397$$
$$x_{59} = -16073.3316012142$$
$$x_{60} = -27078.0352080686$$
$$x_{61} = -30466.1783894116$$
$$x_{62} = 31444.4515047677$$
$$x_{63} = -25384.1937702562$$
$$x_{64} = -28772.0392279688$$
$$x_{65} = -38090.9893410141$$
$$x_{66} = -11848.0392434311$$
$$x_{67} = 35680.3879821797$$
$$x_{68} = 34833.1598557706$$
$$x_{69} = 37374.895687914$$
$$x_{70} = -37243.7143420725$$
$$x_{71} = -18611.3614370965$$
$$x_{72} = 17050.1559318825$$
$$x_{73} = 40764.0867683133$$
$$x_{74} = -21997.1515563141$$
$$x_{75} = -42327.5629813992$$
$$x_{76} = -33007.5945376195$$
$$x_{77} = 30597.3340188912$$
$$x_{78} = 22128.2352037251$$
$$x_{79} = 22974.911560993$$
$$x_{80} = -4$$
$$x_{81} = -31313.2917189842$$
$$x_{82} = 39916.7693853645$$