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сумма
-acos(3/10) + 2*pi + acos(3/10)
=
2*pi
произведение
-acos(3/10) + 2*pi * acos(3/10)
=
(-acos(3/10) + 2*pi)*acos(3/10)
x_1 = -acos(3/10) + 2*pi
x_2 = acos(3/10)
x1 = -95.5138832804733
x2 = -92.9816759349143
x3 = 55.2825640918368
x4 = 45.2484008230366
x5 = -51.5315861302162
x6 = 80.4153053205551
x7 = -86.6984906277347
x8 = 92.9816759349143
x9 = 17.5834522487593
x10 = -55.2825640918368
x11 = -82.9475126661141
x12 = -61.5657493990164
x13 = 67.8489347061959
x14 = 57.8147714373958
x15 = -23.8666375559388
x16 = 38.965215515857
x17 = -57.8147714373958
x18 = -74.1321200133755
x19 = -38.965215515857
x20 = -36.433008170298
x21 = -80.4153053205551
x22 = 61.5657493990164
x23 = 23.8666375559388
x24 = -7.54928897995909
x25 = 64.0979567445754
x26 = -30.1498228631184
x27 = -1.2661036727795
x28 = 70.3811420517549
x29 = -32.6820302086774
x30 = -26.3988449014978
x31 = 5.01708163440009
x32 = 32.6820302086774
x33 = -89.2306979732937
x34 = 99.2648612420939
x35 = 82.9475126661141
x36 = 86.6984906277347
x37 = -17.5834522487593
x38 = 13.8324742871387
x39 = -13.8324742871387
x40 = 48.9993787846572
x41 = 11.3002669415797
x42 = -45.2484008230366
x43 = 95.5138832804733
x44 = -48.9993787846572
x45 = -5.01708163440009
x46 = 26.3988449014978
x47 = 89.2306979732937
x48 = 20.1156595943183
x49 = 7.54928897995909
x50 = -42.7161934774776
x51 = -20.1156595943183
x52 = 1.2661036727795
x53 = 42.7161934774776
x54 = -11.3002669415797
x55 = 74.1321200133755
x56 = 51.5315861302162
x57 = -99.2648612420939
x58 = 76.6643273589345
x59 = -64.0979567445754
x60 = -67.8489347061959
x61 = 36.433008170298
x62 = 30.1498228631184
x63 = -76.6643273589345
x64 = -70.3811420517549
x64 = -70.3811420517549