Найду корень уравнения: tg(3*x)=0
с изменением знака при 0
x1 = -17.8023583703422
x2 = -53.4070751110265
x3 = -43.9822971502571
x4 = 74.3510261349584
x5 = 72.2566310325652
x6 = -74.3510261349584
x7 = -79.5870138909414
x8 = 96.342174710087
x9 = 30.3687289847013
x10 = -26.1799387799149
x11 = 24.0855436775217
x12 = -15.707963267949
x13 = 98.4365698124802
x14 = 92.1533845053006
x15 = 19.8967534727354
x16 = -77.4926187885482
x17 = 21.9911485751286
x18 = -52.3598775598299
x19 = -30.3687289847013
x20 = 39.7935069454707
x21 = 80.634211442138
x22 = 17.8023583703422
x23 = -68.0678408277789
x24 = 85.870199198121
x25 = 15.707963267949
x26 = 50.2654824574367
x27 = 26.1799387799149
x28 = 2.0943951023932
x29 = -50.2654824574367
x30 = -65.9734457253857
x31 = 14.6607657167524
x32 = 36.6519142918809
x33 = -24.0855436775217
x34 = 0.0
x35 = 46.0766922526503
x36 = -63.8790506229925
x37 = 65.9734457253857
x38 = -31.4159265358979
x39 = 54.4542726622231
x40 = -85.870199198121
x41 = 81.6814089933346
x42 = -59.6902604182061
x43 = -6.28318530717959
x44 = 68.0678408277789
x45 = -4.18879020478639
x46 = -33.5103216382911
x47 = -9.42477796076938
x48 = -97.3893722612836
x49 = -28.2743338823081
x50 = -35.6047167406843
x51 = -46.0766922526503
x52 = -2.0943951023932
x53 = -90.0589894029074
x54 = -21.9911485751286
x55 = 83.7758040957278
x56 = 52.3598775598299
x57 = -7.33038285837618
x58 = 6.28318530717959
x59 = -19.8967534727354
x60 = 32.4631240870945
x61 = -94.2477796076938
x62 = 41.8879020478639
x63 = -92.1533845053006
x64 = 76.4454212373516
x65 = -48.1710873550435
x66 = -81.6814089933346
x67 = 8.37758040957278
x68 = -99.4837673636768
x69 = -39.7935069454707
x70 = -57.5958653158129
x71 = 48.1710873550435
x72 = 87.9645943005142
x73 = -75.398223686155
x74 = 37.6991118430775
x75 = -13.6135681655558
x76 = 78.5398163397448
x77 = 34.5575191894877
x78 = -72.2566310325652
x79 = 43.9822971502571
x80 = -61.7846555205993
x81 = 100.530964914873
x82 = -11.5191730631626
x83 = -37.6991118430775
x84 = 58.6430628670095
x85 = -41.8879020478639
x86 = 56.5486677646163
x87 = -87.9645943005142
x88 = 61.7846555205993
x89 = -83.7758040957278
x90 = 63.8790506229925
x91 = -70.162235930172
x92 = 12.5663706143592
x93 = 28.2743338823081
x94 = 90.0589894029074
x95 = 4.18879020478639
x96 = 59.6902604182061
x97 = -55.5014702134197
x98 = -96.342174710087
x99 = 10.471975511966
x100 = 70.162235930172
x101 = 94.2477796076938