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$$- \frac{e^{x}}{10} - 2 \sin{\left(x \right)} \cos{\left(x \right)} = 0$$
Resolvermos esta ecuaciónRaíces de esta ecuación
$$x_{1} = -1.56029181611415$$
$$x_{2} = -14.1371669049067$$
$$x_{3} = -86.3937979737193$$
$$x_{4} = -28.2743338823082$$
$$x_{5} = -65.9734457253857$$
$$x_{6} = -64.4026493985908$$
$$x_{7} = -58.1194640914112$$
$$x_{8} = -50.2654824574367$$
$$x_{9} = -83.2522053201295$$
$$x_{10} = -9.42478199572898$$
$$x_{11} = -3.14374870263672$$
$$x_{12} = -45.553093477052$$
$$x_{13} = -483.805268652828$$
$$x_{14} = -0.0477415195321188$$
$$x_{15} = -51.8362787842316$$
$$x_{16} = -37.6991118430775$$
$$x_{17} = -39.2699081698724$$
$$x_{18} = -6.28327867059958$$
$$x_{19} = -43.9822971502571$$
$$x_{20} = -40.8407044966673$$
$$x_{21} = -15.7079632754841$$
$$x_{22} = 2.29510181529487$$
$$x_{23} = -48.6946861306418$$
$$x_{24} = -23.5619449019205$$
$$x_{25} = -42.4115008234622$$
$$x_{26} = -53.4070751110265$$
$$x_{27} = -21.9911485751426$$
$$x_{28} = -67.5442420521806$$
$$x_{29} = -94.2477796076938$$
$$x_{30} = -61.261056745001$$
$$x_{31} = 2.29510181529513$$
$$x_{32} = -95.8185759344887$$
$$x_{33} = -36.1283155162826$$
$$x_{34} = -31.4159265358979$$
$$x_{35} = -75.398223686155$$
$$x_{36} = -89.5353906273091$$
$$x_{37} = -81.6814089933346$$
$$x_{38} = -59.6902604182061$$
$$x_{39} = -87.9645943005142$$
$$x_{40} = -7.85396222343752$$
$$x_{41} = -29.845130209103$$
$$x_{42} = -80.1106126665397$$
$$x_{43} = -17.2787595931775$$
$$x_{44} = -73.8274273593601$$
$$x_{45} = -20.420352248266$$
$$x_{46} = -72.2566310325652$$
$$x_{47} = -97.3893722612836$$
Signos de extremos en los puntos:
(-1.560291816114148, -0.0208971352194921)
(-14.137166904906705, -7.24947264737507e-8)
(-86.39379797371932, 3.84666560232128e-30)
(-28.274333882308166, 0.999999999999947)
(-65.97344572538566, 1)
(-64.40264939859077, 2.98707110010699e-29)
(-58.119464091411174, -5.74142041082736e-27)
(-50.26548245743669, 1)
(-83.25220532012952, 2.15783512196979e-30)
(-9.424781995728978, 0.999991930064524)
(-3.1437487026367172, 0.995683266729179)
(-45.553093477052, -1.64642847758464e-21)
(-483.80526865282815, 1)
(-0.047741519532118776, 0.902384459912073)
(-51.83627878423159, -3.07461083405492e-24)
(-37.69911184307752, 1)
(-39.269908169872416, -8.81648711164854e-19)
(-6.28327867059958, 0.999813264444371)
(-43.982297150257104, 1)
(-40.840704496667314, 1)
(-15.707963275484053, 0.999999984929827)
(2.2951018152948683, -0.553485429237057)
(-48.6946861306418, -7.11486138866341e-23)
(-23.561944901920523, -5.85028934680265e-12)
(-42.411500823462205, -3.80994953298785e-20)
(-53.40707511102649, 1)
(-21.991148575142624, 0.999999999971857)
(-67.54424205218055, 1.89789958283559e-29)
(-94.2477796076938, 1)
(-61.26105674500097, -2.39470080374818e-28)
(2.2951018152951286, -0.553485429237057)
(-95.81857593448869, 3.83695972225408e-30)
(-36.12831551628262, -2.04019618351432e-17)
(-31.415926535897935, 0.999999999999998)
(-75.39822368615503, 1)
(-89.53539062730911, 2.90687124074635e-29)
(-81.68140899333463, 1)
(-59.69026041820607, 1)
(-87.96459430051421, 1)
(-7.853962223437517, -3.88206971543086e-5)
(-29.84513020910303, -1.09250803190593e-14)
(-80.11061266653972, 2.40022195511122e-29)
(-17.278759593177472, -3.13278113006724e-9)
(-73.82742735936014, 6.00727369269894e-30)
(-20.420352248265967, -1.35379747591567e-10)
(-72.25663103256524, 1)
(-97.3893722612836, 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:
Puntos mínimos de la función:
$$x_{1} = -1.56029181611415$$
$$x_{2} = -14.1371669049067$$
$$x_{3} = -86.3937979737193$$
$$x_{4} = -64.4026493985908$$
$$x_{5} = -58.1194640914112$$
$$x_{6} = -83.2522053201295$$
$$x_{7} = -45.553093477052$$
$$x_{8} = -51.8362787842316$$
$$x_{9} = -39.2699081698724$$
$$x_{10} = -48.6946861306418$$
$$x_{11} = -23.5619449019205$$
$$x_{12} = -42.4115008234622$$
$$x_{13} = -67.5442420521806$$
$$x_{14} = -61.261056745001$$
$$x_{15} = -95.8185759344887$$
$$x_{16} = -36.1283155162826$$
$$x_{17} = -89.5353906273091$$
$$x_{18} = -7.85396222343752$$
$$x_{19} = -29.845130209103$$
$$x_{20} = -80.1106126665397$$
$$x_{21} = -17.2787595931775$$
$$x_{22} = -73.8274273593601$$
$$x_{23} = -20.420352248266$$
Puntos máximos de la función:
$$x_{23} = -28.2743338823082$$
$$x_{23} = -65.9734457253857$$
$$x_{23} = -50.2654824574367$$
$$x_{23} = -9.42478199572898$$
$$x_{23} = -3.14374870263672$$
$$x_{23} = -483.805268652828$$
$$x_{23} = -0.0477415195321188$$
$$x_{23} = -37.6991118430775$$
$$x_{23} = -6.28327867059958$$
$$x_{23} = -43.9822971502571$$
$$x_{23} = -40.8407044966673$$
$$x_{23} = -15.7079632754841$$
$$x_{23} = 2.29510181529487$$
$$x_{23} = -53.4070751110265$$
$$x_{23} = -21.9911485751426$$
$$x_{23} = -94.2477796076938$$
$$x_{23} = 2.29510181529513$$
$$x_{23} = -31.4159265358979$$
$$x_{23} = -75.398223686155$$
$$x_{23} = -81.6814089933346$$
$$x_{23} = -59.6902604182061$$
$$x_{23} = -87.9645943005142$$
$$x_{23} = -72.2566310325652$$
$$x_{23} = -97.3893722612836$$
Decrece en los intervalos
$$\left[-1.56029181611415, \infty\right)$$
Crece en los intervalos
$$\left(-\infty, -95.8185759344887\right]$$