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cos(3*x)=-1

cos(3*x)=-1 la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
cos(3*x) = -1
$$\cos{\left(3 x \right)} = -1$$
Solución detallada
Tenemos la ecuación
$$\cos{\left(3 x \right)} = -1$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$3 x = \pi n + \operatorname{acos}{\left(-1 \right)}$$
$$3 x = \pi n - \pi + \operatorname{acos}{\left(-1 \right)}$$
O
$$3 x = \pi n + \pi$$
$$3 x = \pi n$$
, donde n es cualquier número entero
Dividamos ambos miembros de la ecuación obtenida en
$$3$$
obtenemos la respuesta:
$$x_{1} = \frac{\pi n}{3} + \frac{\pi}{3}$$
$$x_{2} = \frac{\pi n}{3}$$
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 = 86.9173967892295
x2 = -34.5575190560831
x3 = -82.7286069074292
x4 = 13.6135683335585
x5 = -55.501470339224
x6 = 80.6342112833208
x7 = -38.7463098041192
x8 = -32.4631239211685
x9 = -21.9911485864683
x10 = -59.6902604573636
x11 = -61.7846554919628
x12 = 53.4070752151879
x13 = 95.294976948998
x14 = 9.42477808135176
x15 = -53.4070752629576
x16 = 55.5014703723413
x17 = 84.8230015250443
x18 = 93.2005824359632
x19 = 68.0678406256452
x20 = -5.23598790794418
x21 = 30.3687289136091
x22 = 99.4837675171026
x23 = -99.4837674953423
x24 = -24.0855436072883
x25 = 65.9734457527543
x26 = 97.3893723442985
x27 = -93.2005821937681
x28 = 51.3126798911883
x29 = -112.050138233058
x30 = 38.7463092377642
x31 = 82.7286063849234
x32 = -36.6519142867263
x33 = -3.14159273948893
x34 = -17.8023583238223
x35 = -78.5398161963125
x36 = 32.463123974206
x37 = 78.5398162009252
x38 = 72.2566310277214
x39 = 57.595865484629
x40 = -7.33038302030457
x41 = 42.9350997066251
x42 = -74.3510259705245
x43 = -13.6135682453022
x44 = -95.2949773207426
x45 = -91.1061869787177
x46 = 28.2743338652382
x47 = -97.3893724165565
x48 = -9.42477810882172
x49 = -15.7079632964021
x50 = -70.1622358204673
x51 = 11.5191732261809
x52 = 70.1622360266582
x53 = -57.5958654038294
x54 = -72.2566308884953
x55 = 74.3510260729228
x56 = 36.6519141311518
x57 = -89.0117914375586
x58 = 19.8967535532584
x59 = -11.5191731827034
x60 = 76.4454211314942
x61 = -68.0678407687851
x62 = 15.7079634213668
x63 = 26.1799388481654
x64 = 59.6902605755492
x65 = -47.1238898632468
x66 = -19.8967529903279
x67 = -30.3687288181742
x68 = 17.8023584945614
x69 = -51.3126801709688
x70 = 34.5575190458158
x71 = 21.9911485851801
x72 = -76.4454210695477
x73 = -49.2182850519149
x74 = -28.2743337333192
x75 = 40.8407043904405
x76 = -1.04719735385243
x77 = 61.7846556513336
x78 = 7.33038281101878
x79 = -80.6342113974683
x80 = -45.0294943910096
x81 = 63.8790507130208
x82 = -65.973445765171
x83 = -26.1799386626996
x83 = -26.1799386626996
Gráfico
cos(3*x)=-1 la ecuación