Найду корень уравнения: cos x =1
x1 = -12.5663710889626
x2 = 31.4159260648825
x3 = 56.5486682809363
x4 = -31.4159260208155
x5 = 56.5486676011951
x6 = -56.5486682426592
x7 = 31.4159268459961
x8 = -12.5663703112531
x9 = -87.9645947692094
x10 = 18.8495564031971
x11 = 18.8495556275525
x12 = 50.2654821322586
x13 = -87.964593928489
x14 = 43.9822971694647
x15 = 6.28318528420851
x16 = -81.6814075578313
x17 = -94.2477797298079
x18 = 81.6814085860518
x19 = 25.1327408328211
x20 = 3.40772025642919e-7
x21 = -6.28318555849548
x22 = -25.1327415297174
x23 = 37.6991115173992
x24 = 75.3982232188727
x25 = -81.6814084945807
x26 = 0.0
x27 = 12.5663711301703
x28 = -94.2477794452815
x29 = -75.3982231720141
x30 = 50.2654829439723
x31 = 6.28318579821791
x32 = -37.6991113479743
x33 = -50.2654829667315
x34 = 56.5486668532011
x35 = -6.2831851275477
x36 = 50.2654824463392
x37 = 6.28318500093652
x38 = -81.6814092565354
x39 = -87.9645943586158
x40 = 25.1327416384075
x41 = 37.6991120311338
x42 = -37.6991121287155
x43 = 69.115038794053
x44 = -25.1327407505866
x45 = -69.1150379045123
x46 = -62.8318534787248
x47 = 12.5663710110881
x48 = -43.9822976246252
x49 = -31.4159267157965
x50 = 94.2477792651059
x51 = -56.5486674685864
x52 = 12.5663704426592
x53 = -62.831852673202
x54 = -18.8495555173448
x55 = 43.9822974733639
x56 = 69.1150379887504
x57 = 37.6991113348642
x58 = 87.9645938121814
x59 = -81.6814090382277
x60 = 81.6814091897036
x61 = -43.9822971745392
x62 = -50.2654822863493
x63 = -18.8495552124105
x64 = 75.3982240031607
x65 = -6.2831858160515
x66 = 62.8318527849002
x67 = 62.8318535568358
x68 = -37.6991118772631
x69 = -75.3982231045728
x70 = 94.2477800892631
x71 = -18.8495563230046
x72 = -69.1150386869085
x73 = 100.530964759815
x74 = -50.265482641087
x75 = 94.2477796093523
x76 = -100.530964626003
x77 = -75.3982238741744
x78 = 100.530965157364
x79 = -4.79511606158654e-7
x80 = 56.5486680806249
x81 = -43.9822967932182
x82 = 87.9645946044253
x83 = 87.964594335905
x84 = -94.2477801171671
x85 = 6.28318626747926
x86 = -31.4159260507536
x87 = 43.9822966661001
x88 = 81.6814084860076