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ctg(x)=-sqrt3/3 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
            ___ 
         -\/ 3  
cot(x) = -------
            3   
$$\cot{\left(x \right)} = \frac{\left(-1\right) \sqrt{3}}{3}$$
Solución detallada
Tenemos la ecuación
$$\cot{\left(x \right)} = \frac{\left(-1\right) \sqrt{3}}{3}$$
cambiamos
$$\cot{\left(x \right)} - 1 + \frac{\sqrt{3}}{3} = 0$$
$$\cot{\left(x \right)} - 1 - \frac{\left(-1\right) \sqrt{3}}{3} = 0$$
Sustituimos
$$w = \cot{\left(x \right)}$$
Abrimos los paréntesis en el miembro izquierdo de la ecuación
-1 + w - -sqrt+3)/3 = 0

Transportamos los términos libres (sin w)
del miembro izquierdo al derecho, obtenemos:
$$w + \frac{\sqrt{3}}{3} = 1$$
Dividamos ambos miembros de la ecuación en (w + sqrt(3)/3)/w
w = 1 / ((w + sqrt(3)/3)/w)

Obtenemos la respuesta: w = 1 - sqrt(3)/3
hacemos cambio inverso
$$\cot{\left(x \right)} = w$$
sustituimos w:
Gráfica
Suma y producto de raíces [src]
suma
-pi 
----
 3  
$$- \frac{\pi}{3}$$
=
-pi 
----
 3  
$$- \frac{\pi}{3}$$
producto
-pi 
----
 3  
$$- \frac{\pi}{3}$$
=
-pi 
----
 3  
$$- \frac{\pi}{3}$$
-pi/3
Respuesta rápida [src]
     -pi 
x1 = ----
      3  
$$x_{1} = - \frac{\pi}{3}$$
x1 = -pi/3
Respuesta numérica [src]
x1 = 39.7935069454707
x2 = 11.5191730631626
x3 = 71.2094334813686
x4 = -98.4365698124802
x5 = -85.870199198121
x6 = -51.3126800086333
x7 = 36.6519142918809
x8 = 14.6607657167524
x9 = -70.162235930172
x10 = 93.2005820564972
x11 = -95.2949771588904
x12 = 49.2182849062401
x13 = 30.3687289847013
x14 = -29.3215314335047
x15 = 17.8023583703422
x16 = -41.8879020478639
x17 = -32.4631240870945
x18 = -92.1533845053006
x19 = 42.9350995990605
x20 = 77.4926187885482
x21 = 46.0766922526503
x22 = -54.4542726622231
x23 = 96.342174710087
x24 = -26.1799387799149
x25 = 8.37758040957278
x26 = -76.4454212373516
x27 = -79.5870138909414
x28 = -16.7551608191456
x29 = -1.0471975511966
x30 = 52.3598775598299
x31 = 20.943951023932
x32 = -10.471975511966
x33 = 55.5014702134197
x34 = 33.5103216382911
x35 = 27.2271363311115
x36 = 83.7758040957278
x37 = 68.0678408277789
x38 = -23.0383461263252
x39 = -60.7374579694027
x40 = -19.8967534727354
x41 = -82.7286065445312
x42 = 74.3510261349584
x43 = -35.6047167406843
x44 = -38.7463093942741
x45 = 80.634211442138
x46 = 99.4837673636768
x47 = -45.0294947014537
x48 = -48.1710873550435
x49 = -73.3038285837618
x50 = 64.9262481741891
x51 = -57.5958653158129
x52 = -4.18879020478639
x53 = -63.8790506229925
x54 = 5.23598775598299
x55 = -89.0117918517108
x56 = 2.0943951023932
x57 = -13.6135681655558
x58 = 58.6430628670095
x59 = 86.9173967493176
x60 = 90.0589894029074
x61 = 24.0855436775217
x62 = 61.7846555205993
x63 = -67.0206432765823
x64 = -7.33038285837618
x64 = -7.33038285837618