Найду корень уравнения: 4cosx+4=0
Перенесём 4 в правую часть ур-ния
с изменением знака при 4
Разделим обе части ур-ния на 4
сумма
0 + pi
=
pi
произведение
1*pi
=
pi
x1 = -28.2743340989896
x2 = 91.1061865667532
x3 = 9.42477826738203
x4 = 59.6902599104079
x5 = -53.407075294995
x6 = 53.4070746418597
x7 = 53.407075424589
x8 = 91.1061873718352
x9 = 84.8230013636028
x10 = 78.5398161804942
x11 = 59.6902606104322
x12 = -9.4247781365785
x13 = 15.7079627593774
x14 = 65.9734460390947
x15 = -3.14159295109225
x16 = -97.3893716284562
x17 = 78.5398166181283
x18 = -34.5575196658297
x19 = 65.9734452390837
x20 = 21.9911480932338
x21 = 78.5398168562347
x22 = 15.7079634518075
x23 = -47.1238901083229
x24 = -59.6902604578012
x25 = 65.9734457529812
x26 = 47.123889410773
x27 = 40.8407045792514
x28 = -21.9911490521325
x29 = -59.6902606928653
x30 = 21.9911485852059
x31 = -65.9734461969855
x32 = 40.8407045848602
x33 = -15.707962774825
x34 = -91.1061864815274
x35 = 34.5575195449229
x36 = -28.2743343914215
x37 = -72.2566315419804
x38 = 59.6902600526626
x39 = -15.7079632965989
x40 = 97.3893717959212
x41 = -65.9734449870253
x42 = -84.8230012511693
x43 = -72.2566311847166
x44 = -53.4070745963886
x45 = 9.42477748794163
x46 = -59.6902599212271
x47 = 28.2743335663982
x48 = 3.1415922548952
x49 = 72.2566310277176
x50 = -84.8230020565447
x51 = -34.5575188899093
x52 = -15.7079635641079
x53 = -78.5398160472843
x54 = -65.9734457649277
x55 = 3.14159306054457
x56 = 34.5575197055812
x57 = -53.4070745786761
x58 = 47.1238902162437
x59 = 28.2743343711514
x60 = -97.3893724533348
x61 = -47.1238893275319
x62 = -78.5398168194507
x63 = 72.2566315166773
x64 = 40.8407042062167
x65 = 15.707963957033
x66 = -21.991148226056
x67 = -3.14159217367683
x68 = -9.42477752082051
x69 = -21.9911485864417
x70 = 28.2743338651796
x71 = 21.9911489072506
x72 = -97.3893717476911
x73 = 84.8230021335997
x74 = -72.2566308657983
x75 = 72.2566306985
x76 = 15.7079629803241
x77 = -40.8407049290801
x78 = -9.42477744529557
x79 = -91.106187265474
x80 = -1127.83176318906
x81 = -40.8407040952604
x82 = 34.5575190219169
x83 = -28.2743337069329
x84 = 97.389372581711
x85 = -65.9734453607004
x86 = -40.8407049008781
x87 = 40.8407049800347