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exp(x)/(exp(x)+1) la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
   x      
  e       
------ = 0
 x        
e  + 1    
$$\frac{e^{x}}{e^{x} + 1} = 0$$
Gráfica
Suma y producto de raíces [src]
suma
0
$$0$$
=
0
$$0$$
producto
1
$$1$$
=
1
$$1$$
1
Respuesta numérica [src]
x1 = -659430162805890.0
x2 = -52.8720030830002
x3 = -68.8720030830002
x4 = -84.8720030830002
x5 = -60.8720030830002
x6 = -10043092.9027964
x7 = -1.03161669940448e+26
x8 = -46.8720030830095
x9 = -82.8720030830002
x10 = -58.8720030830002
x11 = -59.5867362356594
x12 = -64.8720030830002
x13 = -183934.820065287
x14 = -112.872003083
x15 = -2.66033114854276e+17
x16 = -106.872003083
x17 = -118.872003083
x18 = -1.07325431610048e+20
x19 = -38.8720031107555
x20 = -2.36248099100263e+24
x21 = -548335099.496836
x22 = -88.8720030830002
x23 = -1359173.7490165
x24 = -24885.256074415
x25 = -42.8720030835086
x26 = -120.872003083
x27 = -450.836601738839
x28 = -72.8720030830002
x29 = -100.872003083
x30 = -98.8720030830002
x31 = -74.8720030830002
x32 = -66.8720030830002
x33 = -40.8720030867565
x34 = -56.8720030830002
x35 = -12077884734271.5
x36 = -102.872003083
x37 = -29938083051.5531
x38 = -90.8720030830002
x39 = -94.8720030830002
x40 = -96.8720030830002
x41 = -5.85968285787157e+21
x42 = -36.872003288086
x43 = -1634563951388.61
x44 = -221214175308.084
x45 = -3.20046545833863e+23
x46 = -116.872003083
x47 = -1.965733601876e+18
x48 = -50.8720030830004
x49 = -4.3296727731022e+22
x50 = -1.45249157934757e+19
x51 = -32.87201428027
x52 = -28.8726143303757
x53 = -1.71936116567414e+25
x54 = -44.872003083069
x55 = -86.8720030830002
x56 = -3361.96761248405
x57 = -78.8720030830002
x58 = -54.8720030830002
x59 = -108.872003083
x60 = -104.872003083
x61 = -70.8720030830002
x62 = -62.8720030830002
x63 = -76.8720030830002
x64 = -4051678931.3523
x65 = -34.87200459839
x66 = -48.8720030830015
x67 = -92.8720030830002
x68 = -74209071.4667666
x69 = -80.8720030830002
x70 = -30.8720858185953
x71 = -89244167858134.7
x72 = -114.872003083
x73 = -4.87256646627523e+15
x74 = -7.93032785797351e+20
x75 = -3.60036669638355e+16
x76 = -110.872003083
x76 = -110.872003083