Para hallar los extremos hay que resolver la ecuación
dxdf(x)=0(la derivada es igual a cero),
y las raíces de esta ecuación serán los extremos de esta función:
dxdf(x)=primera derivada(1−x3)23x2log(x)+x(1−x3)1=0Resolvermos esta ecuaciónRaíces de esta ecuación
x1=9963.90485468821x2=6405.70861511194x3=7680.52516238245x4=6916.26978878302x5=9710.79807046126x6=3836.08497902443x7=5638.05450571624x8=6661.10182508213x9=11479.8825179676x10=4094.63438885513x11=7171.22323107715x12=8950.62963998711x13=7425.97199928656x14=12488.2612315455x15=12740.0998804738x16=2273.37146765975x17=9457.55320223146x18=8696.94035541435x19=5381.63097441916x20=12236.3228999422x21=3057.5082492685x22=3577.07702587332x23=2535.48828197001x24=12991.8413873405x25=10216.8780873997x26=10722.4407483447x27=9204.16543398109x28=6150.07844026416x29=4352.76181950757x30=4867.87375521718x31=5894.19845124857x32=10975.0380223066x33=3317.56805358394x34=8189.07755643707x35=2796.83858070085x36=8443.09174317264x37=11984.2822228925x38=7934.89109611306x39=11227.5174719074x40=11732.1364068337x41=4610.49901646492x42=5124.91050813349x43=10469.7220409221Signos de extremos en los puntos:
(9963.904854688211, -9.30714380047368e-12)
(6405.708615111937, -3.33462997017886e-11)
(7680.52516238245, -1.97459330559504e-11)
(6916.2697887830245, -2.67249345621418e-11)
(9710.798070461262, -1.00259358527393e-11)
(3836.084979024432, -1.46185900177844e-10)
(5638.054505716243, -4.8193659991141e-11)
(6661.101825082126, -2.97881682860824e-11)
(11479.882517967628, -6.17906408914731e-12)
(4094.6343888551323, -1.21155715685587e-10)
(7171.223231077147, -2.40728313804408e-11)
(8950.629639987113, -1.26898290921069e-11)
(7425.97199928656, -2.17646285842089e-11)
(12488.261231545463, -4.84309438458862e-12)
(12740.099880473812, -4.5711832999739e-12)
(2273.371467659754, -6.57829239397207e-10)
(9457.553202231456, -1.08218503108339e-11)
(8696.940355414352, -1.37893120661413e-11)
(5381.630974419163, -5.51174572864881e-11)
(12236.322899942223, -5.13732100551212e-12)
(3057.5082492685, -2.8077689736733e-10)
(3577.0770258733155, -1.78768332926252e-10)
(2535.488281970006, -4.80870656963401e-10)
(12991.84138734049, -4.31949607570386e-12)
(10216.878087399706, -8.65628569788149e-12)
(10722.440748344714, -7.52785793350803e-12)
(9204.165433981094, -1.1705618858673e-11)
(6150.078440264156, -3.75046096436152e-11)
(4352.76181950757, -1.01595617773382e-10)
(4867.873755217183, -7.36056024826249e-11)
(5894.198451248568, -4.23966659039237e-11)
(10975.038022306644, -7.03756791799516e-12)
(3317.5680535839447, -2.22024024470886e-10)
(8189.077556437071, -1.64076605863981e-11)
(2796.8385807008453, -3.62754542857942e-10)
(8443.09174317264, -1.50216255591105e-11)
(11984.28222289251, -5.45622160300699e-12)
(7934.891096113063, -1.79724078112341e-11)
(11227.517471907355, -6.58946140210819e-12)
(11732.13640683374, -5.80246212835362e-12)
(4610.499016464919, -8.60790517369294e-11)
(5124.910508133491, -6.34591155633109e-11)
(10469.722040922059, -8.06546257819194e-12)
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
Crece en todo el eje numérico