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(-2)*sin(3*x-pi/4)=1 la ecuación

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Solución numérica:

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Solución

Ha introducido [src]
      /      pi\    
-2*sin|3*x - --| = 1
      \      4 /    
$$- 2 \sin{\left(3 x - \frac{\pi}{4} \right)} = 1$$
Solución detallada
Tenemos la ecuación
$$- 2 \sin{\left(3 x - \frac{\pi}{4} \right)} = 1$$
es la ecuación trigonométrica más simple
Dividamos ambos miembros de la ecuación en 2

La ecuación se convierte en
$$\cos{\left(3 x + \frac{\pi}{4} \right)} = \frac{1}{2}$$
Esta ecuación se reorganiza en
$$3 x + \frac{\pi}{4} = \pi n + \operatorname{acos}{\left(\frac{1}{2} \right)}$$
$$3 x + \frac{\pi}{4} = \pi n - \pi + \operatorname{acos}{\left(\frac{1}{2} \right)}$$
O
$$3 x + \frac{\pi}{4} = \pi n + \frac{\pi}{3}$$
$$3 x + \frac{\pi}{4} = \pi n - \frac{2 \pi}{3}$$
, donde n es cualquier número entero
Transportemos
$$\frac{\pi}{4}$$
al miembro derecho de la ecuación
con el signo opuesto, en total:
$$3 x = \pi n + \frac{\pi}{12}$$
$$3 x = \pi n - \frac{11 \pi}{12}$$
Dividamos ambos miembros de la ecuación obtenida en
$$3$$
obtenemos la respuesta:
$$x_{1} = \frac{\pi n}{3} + \frac{\pi}{36}$$
$$x_{2} = \frac{\pi n}{3} - \frac{11 \pi}{36}$$
Gráfica
Suma y producto de raíces [src]
suma
pi   17*pi
-- + -----
36     36 
$$\frac{\pi}{36} + \frac{17 \pi}{36}$$
=
pi
--
2 
$$\frac{\pi}{2}$$
producto
pi 17*pi
--*-----
36   36 
$$\frac{\pi}{36} \frac{17 \pi}{36}$$
=
     2
17*pi 
------
 1296 
$$\frac{17 \pi^{2}}{1296}$$
17*pi^2/1296
Respuesta rápida [src]
     pi
x1 = --
     36
$$x_{1} = \frac{\pi}{36}$$
     17*pi
x2 = -----
       36 
$$x_{2} = \frac{17 \pi}{36}$$
x2 = 17*pi/36
Respuesta numérica [src]
x1 = -29.9323966717028
x2 = -67.6315085147803
x3 = -63.4427183099939
x4 = -8.29031394697306
x5 = -37.6118453804778
x6 = 88.0518607631139
x7 = 66.4097780383842
x8 = -76.0090889243531
x9 = -32.0267917740959
x10 = 48.2583538176432
x11 = -41.8006355852642
x12 = -2.00712863979348
x13 = 62.2209878335978
x14 = -52.2726110972302
x15 = 85.9574656607207
x16 = 90.1462558655071
x17 = 96.4294411726867
x18 = 55.9378025264183
x19 = -83.6885376331281
x20 = 22.4274808881271
x21 = 20.3330857857339
x22 = -92.0661180427009
x23 = -43.8950306876574
x24 = 46.16395871525
x25 = 14.0499004785544
x26 = -73.9146938219599
x27 = -25.7436064669164
x28 = 24.5218759905203
x29 = -89.9717229403077
x30 = 0.0872664625997165
x31 = 29.4087978961045
x32 = -64.8389817115893
x33 = -69.7259036171735
x34 = 35.691983203284
x35 = 68.5041731407774
x36 = 18.2386906833407
x37 = -54.3670061996234
x38 = 6.3704517697793
x39 = 92.2406509679003
x40 = -65.5371134123871
x41 = -39.706240482871
x42 = -27.8380015693096
x43 = 81.7686754559343
x44 = -78.1034840267462
x45 = 75.4854901487547
x46 = -87.8773278379145
x47 = -17.3660260573436
x48 = 4.27605666738611
x49 = 37.7863783056772
x50 = -96.2549082474873
x51 = -48.0838208924438
x52 = -21.55481626213
x53 = -85.7829327355213
x54 = 11.9555053761612
x55 = 99.9200996766754
x56 = 44.0695636128568
x57 = -50.178215994837
x58 = 58.0321976288115
x59 = 33.5975881008908
x60 = 53.8434074240251
x61 = 79.6742803535411
x62 = 39.8807734080704
x63 = -19.4604211597368
x64 = 26.6162710929135
x65 = 73.3910950463616
x66 = -81.5941425307349
x67 = -6.19591884457987
x68 = -34.1211868764891
x69 = 31.5031929984976
x70 = -23.6492113645232
x71 = -94.1605131450941
x72 = 64.315382935991
x73 = -108.821278861846
x74 = 41.9751685104636
x75 = -57.1595330028143
x76 = -4.10152374218667
x77 = -71.8202987195667
x78 = -45.9894257900506
x79 = -61.3483232076007
x80 = 70.5985682431706
x81 = 50.3527489200364
x82 = 9.86111027376796
x83 = 94.3350460702935
x84 = 60.1265927312047
x85 = 97.8257045742822
x86 = -101.141830153071
x87 = 2.18166156499291
x88 = 16.1442955809475
x89 = 83.8630705583275
x90 = -10.3847090493663
x91 = -98.3493033498805
x91 = -98.3493033498805