Найду корень уравнения: 2tg(3x)=0
с изменением знака при 0
Разделим обе части ур-ния на 2
x1 = -92.1533845053006
x2 = -99.4837673636768
x3 = -97.3893722612836
x4 = -72.2566310325652
x5 = 48.1710873550435
x6 = 50.2654824574367
x7 = 90.0589894029074
x8 = 26.1799387799149
x9 = 36.6519142918809
x10 = -28.2743338823081
x11 = -65.9734457253857
x12 = 87.9645943005142
x13 = -7.33038285837618
x14 = 41.8879020478639
x15 = 80.634211442138
x16 = -37.6991118430775
x17 = -21.9911485751286
x18 = 100.530964914873
x19 = -96.342174710087
x20 = -83.7758040957278
x21 = 92.1533845053006
x22 = -77.4926187885482
x23 = -46.0766922526503
x24 = 59.6902604182061
x25 = 2.0943951023932
x26 = 85.870199198121
x27 = 83.7758040957278
x28 = 58.6430628670095
x29 = -6.28318530717959
x30 = -4.18879020478639
x31 = 8.37758040957278
x32 = 28.2743338823081
x33 = -17.8023583703422
x34 = 30.3687289847013
x35 = 10.471975511966
x36 = -15.707963267949
x37 = 78.5398163397448
x38 = 65.9734457253857
x39 = -94.2477796076938
x40 = -50.2654824574367
x41 = 98.4365698124802
x42 = -61.7846555205993
x43 = 68.0678408277789
x44 = -52.3598775598299
x45 = -31.4159265358979
x46 = -57.5958653158129
x47 = -79.5870138909414
x48 = 72.2566310325652
x49 = -19.8967534727354
x50 = 4.18879020478639
x51 = 0.0
x52 = 43.9822971502571
x53 = 14.6607657167524
x54 = -85.870199198121
x55 = 74.3510261349584
x56 = -75.398223686155
x57 = 56.5486677646163
x58 = 32.4631240870945
x59 = -70.162235930172
x60 = 21.9911485751286
x61 = 17.8023583703422
x62 = 52.3598775598299
x63 = -43.9822971502571
x64 = 46.0766922526503
x65 = -74.3510261349584
x66 = -33.5103216382911
x67 = 61.7846555205993
x68 = 12.5663706143592
x69 = -55.5014702134197
x70 = -39.7935069454707
x71 = 54.4542726622231
x72 = -26.1799387799149
x73 = 6.28318530717959
x74 = 34.5575191894877
x75 = -13.6135681655558
x76 = 63.8790506229925
x77 = -9.42477796076938
x78 = 81.6814089933346
x79 = 96.342174710087
x80 = 19.8967534727354
x81 = -90.0589894029074
x82 = -30.3687289847013
x83 = -59.6902604182061
x84 = 37.6991118430775
x85 = 76.4454212373516
x86 = -63.8790506229925
x87 = -53.4070751110265
x88 = -48.1710873550435
x89 = 39.7935069454707
x90 = 24.0855436775217
x91 = 70.162235930172
x92 = -35.6047167406843
x93 = -68.0678408277789
x94 = -87.9645943005142
x95 = -24.0855436775217
x96 = 15.707963267949
x97 = -11.5191730631626
x98 = -41.8879020478639
x99 = -2.0943951023932
x100 = 94.2477796076938
x101 = -81.6814089933346