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$$- e^{x} - \sin{\left(x \right)} = 0$$
Resolvermos esta ecuaciónRaíces de esta ecuación
$$x_{1} = -53.4070751110265$$
$$x_{2} = -37.6991118430775$$
$$x_{3} = -59.6902604182061$$
$$x_{4} = -113.097335529233$$
$$x_{5} = -56.5486677646163$$
$$x_{6} = -0.588532743981861$$
$$x_{7} = -81.6814089933346$$
$$x_{8} = -87.9645943005142$$
$$x_{9} = -75.398223686155$$
$$x_{10} = -78.5398163397448$$
$$x_{11} = -28.2743338823076$$
$$x_{12} = -232.477856365645$$
$$x_{13} = -6.28504927338259$$
$$x_{14} = -18.8495559280512$$
$$x_{15} = -47.1238898038469$$
$$x_{16} = -94.2477796076938$$
$$x_{17} = -12.5663741016894$$
$$x_{18} = -40.8407044966673$$
$$x_{19} = -31.415926535898$$
$$x_{20} = -9.42469725473852$$
$$x_{21} = -50.2654824574367$$
$$x_{22} = -100.530964914873$$
$$x_{23} = -43.9822971502571$$
$$x_{24} = -97.3893722612836$$
$$x_{25} = -62.8318530717959$$
$$x_{26} = -72.2566310325652$$
$$x_{27} = -91.106186954104$$
$$x_{28} = -69.1150383789755$$
$$x_{29} = -3.09636393241065$$
$$x_{30} = -25.1327412287305$$
$$x_{31} = -65.9734457253857$$
$$x_{32} = -84.8230016469244$$
$$x_{33} = -34.5575191894877$$
$$x_{34} = -21.9911485748471$$
$$x_{35} = -15.7079631172472$$
Signos de extremos en los puntos:
(-53.40707511102649, -0.5)
(-37.69911184307752, 1.5)
(-59.69026041820607, -0.5)
(-113.09733552923255, 1.5)
(-56.548667764616276, 1.5)
(-0.5885327439818611, 0.776614886665261)
(-81.68140899333463, 1.5)
(-87.96459430051421, 1.5)
(-75.39822368615503, 1.5)
(-78.53981633974483, -0.5)
(-28.274333882307612, -0.500000000000526)
(-232.4778563656447, 1.5)
(-6.285049273382587, 1.49813429769185)
(-18.84955592805117, 1.49999999348759)
(-47.1238898038469, -0.5)
(-94.2477796076938, 1.5)
(-12.566374101689368, 1.49999651266372)
(-40.840704496667314, -0.5)
(-31.415926535897956, 1.49999999999998)
(-9.424697254738522, -0.500080702774039)
(-50.26548245743669, 1.5)
(-100.53096491487338, 1.5)
(-43.982297150257104, 1.5)
(-97.3893722612836, -0.5)
(-62.83185307179586, 1.5)
(-72.25663103256524, -0.5)
(-91.106186954104, -0.5)
(-69.11503837897546, 1.5)
(-3.0963639324106462, -0.544190658235056)
(-25.132741228730506, 1.49999999998784)
(-65.97344572538566, -0.5)
(-84.82300164692441, -0.5)
(-34.55751918948773, -0.500000000000001)
(-21.991148574847127, -0.500000000281427)
(-15.707963117247216, -0.500000150701739)
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:
$$x_{1} = -53.4070751110265$$
$$x_{2} = -59.6902604182061$$
$$x_{3} = -78.5398163397448$$
$$x_{4} = -28.2743338823076$$
$$x_{5} = -47.1238898038469$$
$$x_{6} = -40.8407044966673$$
$$x_{7} = -9.42469725473852$$
$$x_{8} = -97.3893722612836$$
$$x_{9} = -72.2566310325652$$
$$x_{10} = -91.106186954104$$
$$x_{11} = -3.09636393241065$$
$$x_{12} = -65.9734457253857$$
$$x_{13} = -84.8230016469244$$
$$x_{14} = -34.5575191894877$$
$$x_{15} = -21.9911485748471$$
$$x_{16} = -15.7079631172472$$
Puntos máximos de la función:
$$x_{16} = -37.6991118430775$$
$$x_{16} = -113.097335529233$$
$$x_{16} = -56.5486677646163$$
$$x_{16} = -0.588532743981861$$
$$x_{16} = -81.6814089933346$$
$$x_{16} = -87.9645943005142$$
$$x_{16} = -75.398223686155$$
$$x_{16} = -232.477856365645$$
$$x_{16} = -6.28504927338259$$
$$x_{16} = -18.8495559280512$$
$$x_{16} = -94.2477796076938$$
$$x_{16} = -12.5663741016894$$
$$x_{16} = -31.415926535898$$
$$x_{16} = -50.2654824574367$$
$$x_{16} = -100.530964914873$$
$$x_{16} = -43.9822971502571$$
$$x_{16} = -62.8318530717959$$
$$x_{16} = -69.1150383789755$$
$$x_{16} = -25.1327412287305$$
Decrece en los intervalos
$$\left[-3.09636393241065, \infty\right)$$
Crece en los intervalos
$$\left(-\infty, -97.3893722612836\right]$$