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-cosx/3-√3/2/3=0 la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
           /  ___\    
           |\/ 3 |    
           |-----|    
-cos(x)    \  2  /    
-------- - ------- = 0
   3          3       
$$\frac{\left(-1\right) \cos{\left(x \right)}}{3} - \frac{\frac{1}{2} \sqrt{3}}{3} = 0$$
Solución detallada
Tenemos la ecuación
$$\frac{\left(-1\right) \cos{\left(x \right)}}{3} - \frac{\frac{1}{2} \sqrt{3}}{3} = 0$$
es la ecuación trigonométrica más simple
Transportemos -sqrt(3)/6 al miembro derecho de la ecuación

cambiando el signo de -sqrt(3)/6

Obtenemos:
$$\frac{\left(-1\right) \cos{\left(x \right)}}{3} - \frac{\frac{1}{2} \sqrt{3}}{3} + \frac{\sqrt{3}}{6} = \frac{\sqrt{3}}{6}$$
Dividamos ambos miembros de la ecuación en -1/3

La ecuación se convierte en
$$\cos{\left(x \right)} = - \frac{\sqrt{3}}{2}$$
Esta ecuación se reorganiza en
$$x = \pi n + \operatorname{acos}{\left(- \frac{\sqrt{3}}{2} \right)}$$
$$x = \pi n - \pi + \operatorname{acos}{\left(- \frac{\sqrt{3}}{2} \right)}$$
O
$$x = \pi n + \frac{5 \pi}{6}$$
$$x = \pi n - \frac{\pi}{6}$$
, donde n es cualquier número entero
Gráfica
Respuesta rápida [src]
     5*pi
x1 = ----
      6  
$$x_{1} = \frac{5 \pi}{6}$$
     7*pi
x2 = ----
      6  
$$x_{2} = \frac{7 \pi}{6}$$
x2 = 7*pi/6
Suma y producto de raíces [src]
suma
5*pi   7*pi
---- + ----
 6      6  
$$\frac{5 \pi}{6} + \frac{7 \pi}{6}$$
=
2*pi
$$2 \pi$$
producto
5*pi 7*pi
----*----
 6    6  
$$\frac{5 \pi}{6} \frac{7 \pi}{6}$$
=
     2
35*pi 
------
  36  
$$\frac{35 \pi^{2}}{36}$$
35*pi^2/36
Respuesta numérica [src]
x1 = -28.7979326579064
x2 = -90.5825881785057
x3 = 21.4675497995303
x4 = 34.0339204138894
x5 = 71.733032256967
x6 = -65.4498469497874
x7 = 40.317105721069
x8 = 78.0162175641465
x9 = 8.90117918517108
x10 = -47.6474885794452
x11 = -16.2315620435473
x12 = -15.1843644923507
x13 = 84.2994028713261
x14 = -60.2138591938044
x15 = -84.2994028713261
x16 = -96.8657734856853
x17 = 9.94837673636768
x18 = -2421.64433714213
x19 = -34.0339204138894
x20 = 66.497044500984
x21 = -41.3643032722656
x22 = -21.4675497995303
x23 = 203.679923707738
x24 = 216.246294322097
x25 = -40.317105721069
x26 = 35.081117965086
x27 = -2.61799387799149
x28 = 53.9306738866248
x29 = -79.0634151153431
x30 = 90.5825881785057
x31 = -52.8834763354282
x32 = -85.3466004225227
x33 = -97.9129710368819
x34 = -9.94837673636768
x35 = 16.2315620435473
x36 = 79.0634151153431
x37 = 41.3643032722656
x38 = -128.281700021583
x39 = 46.6002910282486
x40 = -72.7802298081635
x41 = -46.6002910282486
x42 = -91.6297857297023
x43 = -78.0162175641465
x44 = 22.5147473507269
x45 = 52.8834763354282
x46 = 47.6474885794452
x47 = 96.8657734856853
x48 = -4697.20461589234
x49 = 91.6297857297023
x50 = -8.90117918517108
x51 = 72.7802298081635
x52 = 2.61799387799149
x53 = -35.081117965086
x54 = 60.2138591938044
x55 = 27.7507351067098
x56 = 28.7979326579064
x57 = -22.5147473507269
x58 = -59.1666616426078
x59 = 3.66519142918809
x60 = -71.733032256967
x61 = 65.4498469497874
x62 = -27.7507351067098
x63 = 97.9129710368819
x64 = -53.9306738866248
x65 = 85.3466004225227
x66 = 59.1666616426078
x67 = -3.66519142918809
x68 = -66.497044500984
x69 = 192.160750644576
x70 = 15.1843644923507
x70 = 15.1843644923507