Para hallar los extremos hay que resolver la ecuación
$$\frac{d}{d x} f{\left(x \right)} = 0$$
(la derivada es igual a cero),
y las raíces de esta ecuación serán los extremos de esta función:
$$\frac{d}{d x} f{\left(x \right)} = $$
primera derivada$$- \frac{\tan^{2}{\left(x \right)}}{x - \sin{\left(x \right)}} + \frac{\left(x - \tan{\left(x \right)}\right) \left(\cos{\left(x \right)} - 1\right)}{\left(x - \sin{\left(x \right)}\right)^{2}} = 0$$
Resolvermos esta ecuaciónRaíces de esta ecuación
$$x_{1} = -207.345108301703$$
$$x_{2} = -75.398223904069$$
$$x_{3} = -18.8495568615716$$
$$x_{4} = -25.1327416654918$$
$$x_{5} = 81.681406428613$$
$$x_{6} = -12.5663734439644$$
$$x_{7} = -81.6814090386687$$
$$x_{8} = -75.3982239001244$$
$$x_{9} = -62.8318521465565$$
$$x_{10} = 56.5486675844073$$
$$x_{11} = -31.4159240793588$$
$$x_{12} = 69.1150394658599$$
$$x_{13} = -37.6991118774846$$
$$x_{14} = 56.5486678803449$$
$$x_{15} = 75.3982241725269$$
$$x_{16} = -100.530964508641$$
$$x_{17} = -62.8318540736204$$
$$x_{18} = -75.3982237958595$$
$$x_{19} = 81.6814087168407$$
$$x_{20} = 62.8318567779893$$
$$x_{21} = 62.8318526701554$$
$$x_{22} = -94.2477778453903$$
$$x_{23} = -6.28318510384512$$
$$x_{24} = 94.247779609352$$
$$x_{25} = -94.2477794287357$$
$$x_{26} = -69.1150388373004$$
$$x_{27} = -25.1327381393735$$
$$x_{28} = -56.5486673389673$$
$$x_{29} = 81.6814092196325$$
$$x_{30} = 50.2654824463229$$
$$x_{31} = -62.8318552647775$$
$$x_{32} = -12.5663701652999$$
$$x_{33} = 81.6814103897661$$
$$x_{34} = 31.4159238543107$$
$$x_{35} = 37.6991118280756$$
$$x_{36} = 25.132740318945$$
$$x_{37} = -87.9645943583008$$
$$x_{38} = 87.9645943361994$$
$$x_{39} = 31.4159269993762$$
$$x_{40} = 12.5663725284885$$
$$x_{41} = 31.4159275367066$$
$$x_{42} = -50.2654822668523$$
$$x_{43} = -43.9822967170422$$
$$x_{44} = 1256.63704090224$$
$$x_{45} = 100.530964745584$$
$$x_{46} = -18.8495549354584$$
$$x_{47} = 12.5663704226957$$
$$x_{48} = 75.3982279048483$$
$$x_{49} = 43.9822952350179$$
$$x_{50} = 81.6814110944089$$
$$x_{51} = 37.6991120570478$$
$$x_{52} = -100.530965088797$$
$$x_{53} = 94.2477798470804$$
$$x_{54} = -94.2477804030121$$
$$x_{55} = 37.6991096880266$$
$$x_{56} = -37.6991112814928$$
$$x_{57} = 43.9822971695394$$
$$x_{58} = 43.9822964021506$$
$$x_{59} = -31.4159267381921$$
$$x_{60} = 69.1150375210825$$
$$x_{61} = 75.3982212426238$$
$$x_{62} = 18.8495592252303$$
$$x_{63} = 18.8495554995137$$
$$x_{64} = -56.5486709387627$$
$$x_{65} = 6.2831852841214$$
$$x_{66} = -69.1150355891385$$
$$x_{67} = -56.5486712509204$$
$$x_{68} = -37.6991115785943$$
$$x_{69} = -43.9822971744598$$
$$x_{70} = 25.1327416787285$$
$$x_{71} = 100.530967635014$$
$$x_{72} = 25.1327422488485$$
$$x_{73} = -81.6814093919831$$
Signos de extremos en los puntos:
(-207.34510830170288, 1)
(-75.39822390406897, 1)
(-18.849556861571607, 1)
(-25.132741665491807, 1)
(81.68140642861297, 1)
(-12.566373443964437, 1)
(-81.68140903866866, 1)
(-75.39822390012436, 1)
(-62.831852146556535, 1)
(56.5486675844073, 1)
(-31.41592407935884, 1)
(69.11503946585992, 1)
(-37.699111877484555, 1)
(56.548667880344865, 1)
(75.39822417252688, 1)
(-100.53096450864139, 1)
(-62.83185407362036, 1)
(-75.39822379585945, 1)
(81.68140871684069, 1)
(62.831856777989266, 1)
(62.831852670155435, 1)
(-94.24777784539033, 1)
(-6.283185103845123, 1)
(94.24777960935204, 1)
(-94.2477794287357, 1)
(-69.11503883730045, 1)
(-25.132738139373547, 1)
(-56.548667338967256, 1)
(81.68140921963246, 1)
(50.265482446322935, 1)
(-62.83185526477752, 1)
(-12.566370165299931, 1)
(81.68141038976609, 1)
(31.415923854310673, 1)
(37.69911182807561, 1)
(25.132740318945018, 1)
(-87.96459435830079, 1)
(87.96459433619935, 1)
(31.415926999376214, 1)
(12.566372528488479, 1)
(31.41592753670663, 1)
(-50.26548226685232, 1)
(-43.98229671704224, 1)
(1256.63704090224, 1)
(100.53096474558367, 1)
(-18.84955493545835, 1)
(12.566370422695671, 1)
(75.39822790484831, 1)
(43.9822952350179, 1)
(81.68141109440889, 1)
(37.69911205704782, 1)
(-100.53096508879712, 1)
(94.2477798470804, 1)
(-94.24778040301214, 1)
(37.6991096880266, 1)
(-37.6991112814928, 1)
(43.982297169539414, 1)
(43.98229640215063, 1)
(-31.41592673819211, 1)
(69.11503752108251, 1)
(75.39822124262379, 1)
(18.849559225230276, 1)
(18.849555499513663, 1)
(-56.54867093876273, 1)
(6.283185284121399, 1)
(-69.11503558913849, 1)
(-56.548671250920414, 1)
(-37.69911157859432, 1)
(-43.9822971744598, 1)
(25.13274167872845, 1)
(100.53096763501418, 1)
(25.13274224884854, 1)
(-81.68140939198305, 1)
Intervalos de crecimiento y decrecimiento de la función:Hallemos los intervalos donde la función crece y decrece y también los puntos mínimos y máximos de la función, para lo cual miramos cómo se comporta la función en los extremos con desviación mínima del extremo:
La función no tiene puntos mínimos
La función no tiene puntos máximos
No cambia el valor en todo el eje numérico