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сумма
acos(-1/5) 2*pi acos(-1/5) - ---------- + ---- + ---------- 9 9 9
=
2*pi ---- 9
произведение
acos(-1/5) 2*pi acos(-1/5) - ---------- + ---- * ---------- 9 9 9
=
(-acos(-1/5) + 2*pi)*acos(-1/5) ------------------------------- 81
acos(-1/5) 2*pi x_1 = - ---------- + ---- 9 9
acos(-1/5) x_2 = ---------- 9
x1 = 14.1595400434641
x2 = -9.97074983867772
x3 = -100.029739241585
x4 = 17.9545181932316
x5 = 70.0100761072827
x6 = 22.143308398018
x7 = -79.7839199184509
x8 = 20.0489132956248
x9 = 39.9904129729802
x10 = 90.2558954304169
x11 = 28.1221740594187
x12 = -1760.18692373859
x13 = 36.1059424139726
x14 = -49.7642567841484
x15 = 52.1629715323204
x16 = -7.87635473628452
x17 = 96.1452686825775
x18 = 56.047442091328
x19 = -47.974181327534
x20 = -27.7283620043998
x21 = -37.896017870587
x22 = 68.2200006506683
x23 = 88.1615003280237
x24 = -1.89748907488373
x25 = 44.1792031777666
x26 = -39.9904129729802
x27 = -65.8212859024963
x28 = -89.8620833753979
x29 = -26.0277789570255
x30 = 34.0115473115794
x31 = -17.9545181932316
x32 = 12.0651449410709
x33 = -87.7676882730047
x34 = -83.9727101232373
x35 = -45.8797862251408
x36 = -13.7657279884452
x37 = 50.0685764299272
x38 = -59.8424202410955
x39 = 60.2362322961144
x40 = -61.9368153434887
x41 = 42.0848080753734
x42 = 38.2003375163658
x43 = 76.2932614144622
x44 = 47.974181327534
x45 = 46.2735982801598
x46 = -93.7465539344055
x47 = 0.19690602750947
x48 = -5.78195963389132
x49 = 94.0508735801843
x50 = -3.99188417727692
x51 = -57.7480251387023
x52 = 72.1044712096759
x53 = 64.0312104458819
x54 = -19.744593649846
x55 = 98.2396637849707
x56 = 26.0277789570255
x57 = 8.18067438206331
x58 = -56.047442091328
x59 = -97.9353441391919
x60 = 86.0671052256305
x61 = -31.9171522091862
x62 = 2.29130112990267
x63 = 91.9564784777911
x64 = 74.198866312069
x65 = -35.8016227681938
x66 = -77.9938444618365
x67 = -53.9530469889348
x68 = 33.0090959650029
x69 = 54.2573666347136
x70 = -70.0100761072827
x71 = -42.3891277211522
x72 = -71.7106591546569
x73 = -73.8050542570501
x74 = -29.822757106793
x75 = -21.8389887522392
x76 = -9.27261813787998
x77 = 30.2165691618119
x78 = 16.2539351458573
x79 = 3.99188417727692
x80 = -81.8783150208441
x81 = 80.0882395642297
x82 = -91.9564784777911
x83 = -75.8994493594433
x84 = 100.029739241585
x85 = -15.8601230908384
x86 = 6.08627927967012
x87 = -43.7853911227476
x88 = 24.2377035004111
x89 = -67.9156810048895
x90 = -51.8586518865416
x91 = 58.1418371937212
x92 = -34.0115473115794
x93 = 82.1826346666229
x94 = -23.9333838546324
x95 = 77.9938444618365
x96 = 61.9368153434887
x97 = 66.1256055482751
x98 = -95.8409490367987
x98 = -95.8409490367987