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sin(3*x)=-1

sin(3*x)=-1 la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
sin(3*x) = -1
$$\sin{\left(3 x \right)} = -1$$
Solución detallada
Tenemos la ecuación
$$\sin{\left(3 x \right)} = -1$$
es la ecuación trigonométrica más simple
Esta ecuación se reorganiza en
$$3 x = 2 \pi n + \operatorname{asin}{\left(-1 \right)}$$
$$3 x = 2 \pi n - \operatorname{asin}{\left(-1 \right)} + \pi$$
O
$$3 x = 2 \pi n - \frac{\pi}{2}$$
$$3 x = 2 \pi n + \frac{3 \pi}{2}$$
, donde n es cualquier número entero
Dividamos ambos miembros de la ecuación obtenida en
$$3$$
obtenemos la respuesta:
$$x_{1} = \frac{2 \pi n}{3} - \frac{\pi}{6}$$
$$x_{2} = \frac{2 \pi n}{3} + \frac{\pi}{2}$$
Gráfica
Respuesta rápida [src]
     -pi 
x1 = ----
      6  
$$x_{1} = - \frac{\pi}{6}$$
     pi
x2 = --
     2 
$$x_{2} = \frac{\pi}{2}$$
x2 = pi/2
Suma y producto de raíces [src]
suma
  pi   pi
- -- + --
  6    2 
$$- \frac{\pi}{6} + \frac{\pi}{2}$$
=
pi
--
3 
$$\frac{\pi}{3}$$
producto
-pi  pi
----*--
 6   2 
$$- \frac{\pi}{6} \frac{\pi}{2}$$
=
   2 
-pi  
-----
  12 
$$- \frac{\pi^{2}}{12}$$
-pi^2/12
Respuesta numérica [src]
x1 = -42.4115006545154
x2 = 74.8746248486494
x3 = -73.8274272803725
x4 = 66.4970443756899
x5 = -88.4881929146437
x6 = -42.4115010822267
x7 = -84.2994027162129
x8 = 14.1371670949785
x9 = -10.9955742377112
x10 = 20.4203521530692
x11 = -67.544242162189
x12 = 95.8185760523108
x13 = -27.7507351061628
x14 = 97.9129711080124
x15 = 85.3466004238277
x16 = 76.9690203132814
x17 = -2.61799380552474
x18 = -38.2227104853721
x19 = 30.8923277323824
x20 = -13.0899693729028
x21 = 51.8362788945866
x22 = 43.4586985173418
x23 = -23.5619450047453
x24 = -44.5058957690364
x25 = 83.2522049224581
x26 = 91.6297858963776
x27 = -15.1843646196319
x28 = -19.3731548549645
x29 = 3.66519159119344
x30 = 28.7979325198376
x31 = 9.94837678401611
x32 = -40.3171055622449
x33 = 18.3259570974782
x34 = 53.9306739466035
x35 = 93.724180981475
x36 = 70.6858345434363
x37 = -61.2610569029623
x38 = -25.6563400624587
x39 = -96.8657738808645
x40 = -4.71238923573352
x41 = 7.85398173632972
x42 = -65.449847091496
x43 = 60.213859223833
x44 = 5.7595866707223
x45 = 87.4409956573616
x46 = 64.4026493112537
x47 = 62.3082542579151
x48 = -80.1106125819736
x49 = -21.467549936198
x50 = -29.8451300978728
x51 = -82.2050076419441
x52 = 16.2315620579746
x53 = 49.7418838263396
x54 = 24.6091422981059
x55 = -46.6002909322334
x56 = 12.0427717609223
x57 = 39.2699077976373
x58 = -17.2787597552673
x59 = 22.5147472195373
x60 = -0.523598624935135
x61 = -75.9218227439853
x62 = 41.3643033140264
x63 = -48.6946862836254
x64 = 68.5914394517514
x65 = 45.5530936447347
x66 = -34.0339203801376
x67 = 47.6474887440776
x68 = 100.007366129944
x69 = -69.6386372219478
x70 = -63.3554520074103
x71 = -86.3937978052948
x72 = 32.9867232717324
x73 = 72.7802296618859
x74 = -71.733032269064
x75 = -78.0162175465002
x76 = -90.5825880642629
x77 = -31.9395254618874
x78 = 56.0250689520163
x79 = 26.7035373935834
x80 = -57.0722664631985
x81 = -59.1666617558465
x82 = 539.830337690668
x83 = 1.57079649551977
x84 = 89.5353907930327
x85 = -36.1283154225025
x86 = -92.676983354992
x87 = -6.80678413492343
x87 = -6.80678413492343
Gráfico
sin(3*x)=-1 la ecuación