Para hallar los extremos hay que resolver la ecuación
$$\frac{d}{d z} f{\left(z \right)} = 0$$
(la derivada es igual a cero),
y las raíces de esta ecuación serán los extremos de esta función:
$$\frac{d}{d z} f{\left(z \right)} = $$
primera derivada$$- \operatorname{sign}{\left(z - 2 \right)} + \operatorname{sign}{\left(z + 2 \right)} = 0$$
Resolvermos esta ecuaciónRaíces de esta ecuación
$$z_{1} = -56$$
$$z_{2} = -38$$
$$z_{3} = 86$$
$$z_{4} = 88$$
$$z_{5} = 8$$
$$z_{6} = -24$$
$$z_{7} = 12$$
$$z_{8} = -18$$
$$z_{9} = -50$$
$$z_{10} = 62$$
$$z_{11} = -62$$
$$z_{12} = 34$$
$$z_{13} = -100$$
$$z_{14} = -82$$
$$z_{15} = -54$$
$$z_{16} = -10$$
$$z_{17} = -98$$
$$z_{18} = 44$$
$$z_{19} = 24$$
$$z_{20} = -30$$
$$z_{21} = -2.25$$
$$z_{22} = -40$$
$$z_{23} = -46$$
$$z_{24} = 94$$
$$z_{25} = -96$$
$$z_{26} = 90$$
$$z_{27} = 72$$
$$z_{28} = 40$$
$$z_{29} = 30$$
$$z_{30} = 98$$
$$z_{31} = -58$$
$$z_{32} = 2.25$$
$$z_{33} = 10$$
$$z_{34} = 56$$
$$z_{35} = -20$$
$$z_{36} = -4$$
$$z_{37} = 60$$
$$z_{38} = 82$$
$$z_{39} = -64$$
$$z_{40} = 22$$
$$z_{41} = 100$$
$$z_{42} = 64$$
$$z_{43} = -42$$
$$z_{44} = -28$$
$$z_{45} = 54$$
$$z_{46} = -92$$
$$z_{47} = -74$$
$$z_{48} = 70$$
$$z_{49} = 68$$
$$z_{50} = -88$$
$$z_{51} = -72$$
$$z_{52} = 84$$
$$z_{53} = -84$$
$$z_{54} = -8$$
$$z_{55} = 96$$
$$z_{56} = 48$$
$$z_{57} = 20$$
$$z_{58} = -68$$
$$z_{59} = -22$$
$$z_{60} = -80$$
$$z_{61} = 76$$
$$z_{62} = -76$$
$$z_{63} = -34$$
$$z_{64} = 26$$
$$z_{65} = -60$$
$$z_{66} = 66$$
$$z_{67} = -86$$
$$z_{68} = 18$$
$$z_{69} = 6$$
$$z_{70} = -70$$
$$z_{71} = 28$$
$$z_{72} = -48$$
$$z_{73} = 38$$
$$z_{74} = 4$$
$$z_{75} = 52$$
$$z_{76} = -12$$
$$z_{77} = -44$$
$$z_{78} = -94$$
$$z_{79} = -26$$
$$z_{80} = -16$$
$$z_{81} = 36$$
$$z_{82} = 80$$
$$z_{83} = 74$$
$$z_{84} = 32$$
$$z_{85} = -6$$
$$z_{86} = -90$$
$$z_{87} = -78$$
$$z_{88} = 16$$
$$z_{89} = -14$$
$$z_{90} = -66$$
$$z_{91} = 14$$
$$z_{92} = -32$$
$$z_{93} = -36$$
$$z_{94} = -52$$
$$z_{95} = 58$$
$$z_{96} = 78$$
$$z_{97} = 92$$
$$z_{98} = 46$$
$$z_{99} = 42$$
$$z_{100} = 50$$
Signos de extremos en los puntos:
(-56, -4)
(-38, -4)
(86, 4)
(88, 4)
(8, 4)
(-24, -4)
(12, 4)
(-18, -4)
(-50, -4)
(62, 4)
(-62, -4)
(34, 4)
(-100, -4)
(-82, -4)
(-54, -4)
(-10, -4)
(-98, -4)
(44, 4)
(24, 4)
(-30, -4)
(-2.25, -4)
(-40, -4)
(-46, -4)
(94, 4)
(-96, -4)
(90, 4)
(72, 4)
(40, 4)
(30, 4)
(98, 4)
(-58, -4)
(2.25, 4)
(10, 4)
(56, 4)
(-20, -4)
(-4, -4)
(60, 4)
(82, 4)
(-64, -4)
(22, 4)
(100, 4)
(64, 4)
(-42, -4)
(-28, -4)
(54, 4)
(-92, -4)
(-74, -4)
(70, 4)
(68, 4)
(-88, -4)
(-72, -4)
(84, 4)
(-84, -4)
(-8, -4)
(96, 4)
(48, 4)
(20, 4)
(-68, -4)
(-22, -4)
(-80, -4)
(76, 4)
(-76, -4)
(-34, -4)
(26, 4)
(-60, -4)
(66, 4)
(-86, -4)
(18, 4)
(6, 4)
(-70, -4)
(28, 4)
(-48, -4)
(38, 4)
(4, 4)
(52, 4)
(-12, -4)
(-44, -4)
(-94, -4)
(-26, -4)
(-16, -4)
(36, 4)
(80, 4)
(74, 4)
(32, 4)
(-6, -4)
(-90, -4)
(-78, -4)
(16, 4)
(-14, -4)
(-66, -4)
(14, 4)
(-32, -4)
(-36, -4)
(-52, -4)
(58, 4)
(78, 4)
(92, 4)
(46, 4)
(42, 4)
(50, 4)
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