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cox(x)=-1/2 la ecuación

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Solución numérica:

Buscar la solución numérica en el intervalo [, ]

Solución

Ha introducido [src]
cos(x)*x = -1/2
$$x \cos{\left(x \right)} = - \frac{1}{2}$$
Gráfica
Respuesta numérica [src]
x1 = -7.78975056989498
x2 = -48.7049522075013
x3 = -58.1108597415212
x4 = -4.81638857615034
x5 = -20.3958349831526
x6 = 26.7222496469849
x7 = -17.3076525697883
x8 = -95.813357431737
x9 = -51.8266310848514
x10 = 14.1724539691235
x11 = -23.5831480706013
x12 = -73.8341993407201
x13 = 20.4448107703862
x14 = 4.60356276922049
x15 = -92.6823780758503
x16 = 1.84520033120208
x17 = 54.9687752392439
x18 = 7.9171775095777
x19 = 10.9498958697259
x20 = -98.9652208895098
x21 = 48.684415723104
x22 = -67.5516438641424
x23 = 39.2826367833939
x24 = -64.3948847286746
x25 = 86.3880101011772
x26 = 92.6715878577984
x27 = 33.0018740971055
x28 = -61.2692175404215
x29 = 76.975515630576
x30 = -54.986964627343
x31 = -42.4232870760363
x32 = -80.1168535911812
x33 = 89.5409746920371
x34 = 95.8237938688735
x35 = 23.5407034975702
x36 = 98.9551157707108
x37 = -36.1421502202841
x38 = -14.1017027967608
x39 = 67.5368386175835
x40 = 61.2528937746975
x41 = -26.6847991997192
x42 = -0.610031284464176
x43 = -70.6787603857371
x44 = 58.1280658943144
x45 = 42.3997080160874
x46 = 80.10437076935
x47 = -1.09800887679615
x48 = -29.8618747494217
x49 = -89.5298058659628
x50 = -32.9715576960873
x51 = -83.2461990037773
x52 = 45.5640672567333
x53 = 83.2582107699325
x54 = 29.8283668569335
x55 = -11.040876042586
x56 = -45.5421144074228
x57 = 64.4104121966344
x58 = 51.8459228936025
x59 = -76.9625232987589
x60 = 36.1144702079655
x61 = 17.2497696399738
x62 = -86.3995850708503
x63 = 70.6929076100511
x64 = 73.8206541354037
x65 = -39.2571712990613
x65 = -39.2571712990613