Найду корень уравнения: ctg(x)=1/4
сумма
0 + acot(1/4)
=
acot(1/4)
произведение
1*acot(1/4)
=
acot(1/4)
x1 = -17.5237382578707
x2 = 54.7328927746945
x3 = 57.8744854282843
x4 = 13.8921882780272
x5 = 70.4408560426435
x6 = -8.09896029710135
x7 = -92.9219619440258
x8 = -83.4971839832564
x9 = -39.5148868329993
x10 = 89.2904119641822
x11 = -33.2317015258197
x12 = -48.9396647937687
x13 = -80.3555913296666
x14 = 83.0072266570027
x15 = 7.60900297084762
x16 = 10.7505956244374
x17 = 29.6001515459762
x18 = -77.2139986760768
x19 = 17.033780931617
x20 = 98.7151899249516
x21 = 35.8833368531558
x22 = 39.0249295067456
x23 = 92.432004617772
x24 = -26.9485162186401
x25 = -42.6564794865891
x26 = -86.6387766368462
x27 = 64.1576707354639
x28 = -64.6476280617176
x29 = 32.741744199566
x30 = -61.5060354081278
x31 = -1.81577498992176
x32 = -67.7892207153074
x33 = 1.32581766366803
x34 = 67.2992633890537
x35 = -36.3732941794095
x36 = 73.5824486962333
x37 = 45.3081148139251
x38 = -11.2405529506911
x39 = 86.1488193105924
x40 = -4.95736764351155
x41 = 23.3169662387966
x42 = -23.8069235650503
x43 = -99.2051472512053
x44 = -14.3821456042809
x45 = 48.4497074675149
x46 = 79.8656340034129
x47 = 4.46741031725783
x48 = -70.9308133688972
x49 = 20.1753735852068
x50 = -55.2228501009482
x51 = 26.4585588923864
x52 = -30.0901088722299
x53 = 95.5735972713618
x54 = 42.1665221603353
x55 = 61.0160780818741
x56 = -89.780369290436
x57 = 76.7240413498231
x58 = -58.364442754538
x59 = 51.5913001211047
x60 = -96.0635545976156
x61 = -45.7980721401789
x62 = -52.0812574473585
x63 = -74.072406022487
x64 = -20.6653309114605