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сумма
-acos(-1/4) + 2*pi + acos(-1/4)
=
2*pi
произведение
-acos(-1/4) + 2*pi * acos(-1/4)
=
(-acos(-1/4) + 2*pi)*acos(-1/4)
x_1 = -acos(-1/4) + 2*pi
x_2 = acos(-1/4)
x1 = -54.7251911826793
x2 = -8.10666188911656
x3 = 54.7251911826793
x4 = -79.8579324113977
x5 = -98.7074883329364
x6 = 8.10666188911656
x7 = 23.3092646467814
x8 = 73.5747471042181
x9 = 42.1588205683201
x10 = -58.3721443465533
x11 = 89.7880708824512
x12 = -67.2915617970385
x13 = 17.0260793396018
x14 = -83.5048855752716
x15 = 79.8579324113977
x16 = -14.3898471962961
x17 = -29.592449953961
x18 = 10.7428940324222
x19 = 86.1411177185772
x20 = 92.4243030257568
x21 = -35.8756352611405
x22 = -42.1588205683201
x23 = 96.0712561896308
x24 = -96.0712561896308
x25 = -1.82347658193698
x26 = 98.7074883329364
x27 = -17.0260793396018
x28 = 67.2915617970385
x29 = -48.4420058754997
x30 = -77.221700268092
x31 = 26.9562178106553
x32 = -86.1411177185772
x33 = 45.8057737321941
x34 = -92.4243030257568
x35 = 52.0889590393737
x36 = -33.2394031178349
x37 = -10.7428940324222
x38 = -64.6553296537328
x39 = 77.221700268092
x40 = -61.0083764898589
x41 = 83.5048855752716
x42 = -73.5747471042181
x43 = 64.6553296537328
x44 = 1.82347658193698
x45 = -70.9385149609124
x46 = 29.592449953961
x47 = 58.3721443465533
x48 = -45.8057737321941
x49 = -20.6730325034757
x50 = 61.0083764898589
x51 = -4.45970872524261
x52 = -26.9562178106553
x53 = 48.4420058754997
x54 = 20.6730325034757
x55 = 33.2394031178349
x56 = 4.45970872524261
x57 = -89.7880708824512
x58 = -39.5225884250145
x59 = 39.5225884250145
x60 = 70.9385149609124
x61 = 14.3898471962961
x62 = -23.3092646467814
x63 = -52.0889590393737
x64 = 35.8756352611405
x64 = 35.8756352611405