Найду корень уравнения: cos(x/2)+1=0
Перенесём 1 в правую часть ур-ния
с изменением знака при 1
сумма
0 + 2*pi
=
2*pi
произведение
1*2*pi
=
2*pi
x1 = 94.2477788210844
x2 = 43.982297169474
x3 = 94.2477787666659
x4 = -18.8495554800568
x5 = -6.28318630492991
x6 = -69.1150405916551
x7 = 18.8495554920234
x8 = 18.8495549415754
x9 = 6.28318528419795
x10 = 43.9822979229286
x11 = -56.5486687887842
x12 = 56.5486672894687
x13 = 81.6814069775521
x14 = -81.6814097251289
x15 = -94.2477786842917
x16 = 56.5486675992574
x17 = 56.5486681672153
x18 = -31.4159267183799
x19 = 69.1150397628024
x20 = 81.6814083413212
x21 = -6.28318597231491
x22 = -6.28318480992034
x23 = 69.1150394039813
x24 = -56.5486683277755
x25 = -69.1150380827831
x26 = 94.2477796093523
x27 = -31.4159267991785
x28 = 81.681409932803
x29 = 43.9822962232996
x30 = -81.6814098544517
x31 = 31.4159268602638
x32 = -56.548667456373
x33 = -31.4159274639505
x34 = -43.9822979202134
x35 = -43.9822963521153
x36 = -69.1150393645777
x37 = -18.8495569383691
x38 = 31.4159259869291
x39 = 81.6814094388795
x40 = -18.8495572113627
x41 = -31.4159269573538
x42 = 31.415926404003
x43 = 69.1150368714384
x44 = 973.893720162307
x45 = -94.2477802857943
x46 = 81.6814091930517
x47 = -69.115038701061
x48 = -56.5486667805662
x49 = -94.2477794433785
x50 = 6.28318445599649
x51 = -18.8495563601837
x52 = 81.6814079898679
x53 = -94.2477805989545
x54 = -94.2477790629797
x55 = -31.4159255258029
x56 = -31.4159258676764
x57 = 56.5486684458067
x58 = -18.8495548993085
x59 = 31.4159255107699
x60 = -81.6814082319334
x61 = 43.9822980146158
x62 = -43.982296295854
x63 = 69.115038835587
x64 = -6.28318500560576
x65 = 6.28318608026041
x66 = -6.28318512498487
x67 = -69.1150378269834
x68 = -43.9822980632848
x69 = 18.8495561010751
x70 = 6.28318624191326
x71 = -81.68140804614
x72 = -81.6814090382823
x73 = 31.4159275256971
x74 = -18.8495543136467
x75 = -6.28318627375063
x76 = 69.1150373651011
x77 = -6.28318437561383
x78 = 56.548668769019
x79 = 18.8495556154405
x80 = 56.5486668446775
x81 = 69.115037955532
x82 = 94.2477803922665
x83 = 18.8495569537229
x84 = -69.115037346238
x85 = 94.2477805288104
x86 = 18.8495564877336
x87 = -420.973417050673
x88 = 6.28318454684724
x89 = 43.9822963919738
x90 = -43.9822971745293
x91 = -56.5486677946696